20123585559

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{15671}}^1$

素因数の和:15821

約数の個数: 96

約数和(自身を含む): 38726138880

約数和(自身を除く): 18602553321

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 109, 119, 153, 187, 231, 327, 357, 561, 693, 763, 981, 1071, 1199, 1309, 1683, 1853, 2289, 3597, 3927, 5559, 6867, 8393, 10791, 11781, 12971, 15671, 16677, 20383, 25179, 38913, 47013, 61149, 75537, 109697, 116739, 141039, 142681, 172381, 183447, 266407, 329091, 428043, 517143, 799221, 987273, 1206667, 1284129, 1551429, 1708139, 1864849, 2397663, 2930477, 3620001, 5124417, 5594547, 8791431, 10860003, 11956973, 15373251, 16783641, 18789529, 20513339, 26374293, 29038363, 35870919, 56368587, 61540017, 87115089, 107612757, 131526703, 169105761, 184620051, 203268541, 261345267, 319421993, 394580109, 609805623, 958265979, 1183740327, 1829416869, 2235953951, 2874797937, 6707861853, 20123585559]

約数ペア:

[(1, 20123585559), (3, 6707861853), (7, 2874797937), (9, 2235953951), (11, 1829416869), (17, 1183740327), (21, 958265979), (33, 609805623), (51, 394580109), (63, 319421993), (77, 261345267), (99, 203268541), (109, 184620051), (119, 169105761), (153, 131526703), (187, 107612757), (231, 87115089), (327, 61540017), (357, 56368587), (561, 35870919), (693, 29038363), (763, 26374293), (981, 20513339), (1071, 18789529), (1199, 16783641), (1309, 15373251), (1683, 11956973), (1853, 10860003), (2289, 8791431), (3597, 5594547), (3927, 5124417), (5559, 3620001), (6867, 2930477), (8393, 2397663), (10791, 1864849), (11781, 1708139), (12971, 1551429), (15671, 1284129), (16677, 1206667), (20383, 987273), (25179, 799221), (38913, 517143), (47013, 428043), (61149, 329091), (75537, 266407), (109697, 183447), (116739, 172381), (141039, 142681)]