21696590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 23093170

約数列:

[1, 2, 5, 10, 17, 23, 31, 34, 46, 62, 85, 115, 155, 170, 179, 230, 310, 358, 391, 527, 713, 782, 895, 1054, 1426, 1790, 1955, 2635, 3043, 3565, 3910, 4117, 5270, 5549, 6086, 7130, 8234, 11098, 12121, 15215, 20585, 24242, 27745, 30430, 41170, 55490, 60605, 69989, 94333, 121210, 127627, 139978, 188666, 255254, 349945, 471665, 638135, 699890, 943330, 1276270, 2169659, 4339318, 10848295, 21696590]

約数ペア:

[(1, 21696590), (2, 10848295), (5, 4339318), (10, 2169659), (17, 1276270), (23, 943330), (31, 699890), (34, 638135), (46, 471665), (62, 349945), (85, 255254), (115, 188666), (155, 139978), (170, 127627), (179, 121210), (230, 94333), (310, 69989), (358, 60605), (391, 55490), (527, 41170), (713, 30430), (782, 27745), (895, 24242), (1054, 20585), (1426, 15215), (1790, 12121), (1955, 11098), (2635, 8234), (3043, 7130), (3565, 6086), (3910, 5549), (4117, 5270)]