21697432890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1597}}^1\times {\mathrm{2087}}^1$

素因数の和:3732

約数の個数: 128

約数和(自身を含む): 61500653568

約数和(自身を除く): 39803220678

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 1597, 2087, 2170, 3194, 3255, 4174, 4791, 6261, 6510, 7985, 9582, 10435, 11179, 12522, 14609, 15970, 20870, 22358, 23955, 29218, 31305, 33537, 43827, 47910, 49507, 55895, 62610, 64697, 67074, 73045, 87654, 99014, 111790, 129394, 146090, 148521, 167685, 194091, 219135, 247535, 297042, 323485, 335370, 346549, 388182, 438270, 452879, 495070, 646970, 693098, 742605, 905758, 970455, 1039647, 1358637, 1485210, 1732745, 1940910, 2079294, 2264395, 2717274, 3332939, 3465490, 4528790, 5198235, 6665878, 6793185, 9998817, 10396470, 13586370, 16664695, 19997634, 23330573, 33329390, 46661146, 49994085, 69991719, 99988170, 103321109, 116652865, 139983438, 206642218, 233305730, 309963327, 349958595, 516605545, 619926654, 699917190, 723247763, 1033211090, 1446495526, 1549816635, 2169743289, 3099633270, 3616238815, 4339486578, 7232477630, 10848716445, 21697432890]

約数ペア:

[(1, 21697432890), (2, 10848716445), (3, 7232477630), (5, 4339486578), (6, 3616238815), (7, 3099633270), (10, 2169743289), (14, 1549816635), (15, 1446495526), (21, 1033211090), (30, 723247763), (31, 699917190), (35, 619926654), (42, 516605545), (62, 349958595), (70, 309963327), (93, 233305730), (105, 206642218), (155, 139983438), (186, 116652865), (210, 103321109), (217, 99988170), (310, 69991719), (434, 49994085), (465, 46661146), (651, 33329390), (930, 23330573), (1085, 19997634), (1302, 16664695), (1597, 13586370), (2087, 10396470), (2170, 9998817), (3194, 6793185), (3255, 6665878), (4174, 5198235), (4791, 4528790), (6261, 3465490), (6510, 3332939), (7985, 2717274), (9582, 2264395), (10435, 2079294), (11179, 1940910), (12522, 1732745), (14609, 1485210), (15970, 1358637), (20870, 1039647), (22358, 970455), (23955, 905758), (29218, 742605), (31305, 693098), (33537, 646970), (43827, 495070), (47910, 452879), (49507, 438270), (55895, 388182), (62610, 346549), (64697, 335370), (67074, 323485), (73045, 297042), (87654, 247535), (99014, 219135), (111790, 194091), (129394, 167685), (146090, 148521)]