21457710

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:527

約数の個数: 80

約数和(自身を含む): 58806000

約数和(自身を除く): 37348290

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 59, 81, 90, 118, 135, 162, 177, 270, 295, 354, 405, 449, 531, 590, 810, 885, 898, 1062, 1347, 1593, 1770, 2245, 2655, 2694, 3186, 4041, 4490, 4779, 5310, 6735, 7965, 8082, 9558, 12123, 13470, 15930, 20205, 23895, 24246, 26491, 36369, 40410, 47790, 52982, 60615, 72738, 79473, 121230, 132455, 158946, 181845, 238419, 264910, 363690, 397365, 476838, 715257, 794730, 1192095, 1430514, 2145771, 2384190, 3576285, 4291542, 7152570, 10728855, 21457710]

約数ペア:

[(1, 21457710), (2, 10728855), (3, 7152570), (5, 4291542), (6, 3576285), (9, 2384190), (10, 2145771), (15, 1430514), (18, 1192095), (27, 794730), (30, 715257), (45, 476838), (54, 397365), (59, 363690), (81, 264910), (90, 238419), (118, 181845), (135, 158946), (162, 132455), (177, 121230), (270, 79473), (295, 72738), (354, 60615), (405, 52982), (449, 47790), (531, 40410), (590, 36369), (810, 26491), (885, 24246), (898, 23895), (1062, 20205), (1347, 15930), (1593, 13470), (1770, 12123), (2245, 9558), (2655, 8082), (2694, 7965), (3186, 6735), (4041, 5310), (4490, 4779)]