21942420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:341

約数の個数: 96

約数和(自身を含む): 65028096

約数和(自身を除く): 43085676

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 47, 60, 62, 93, 94, 124, 141, 155, 186, 188, 235, 251, 282, 310, 372, 465, 470, 502, 564, 620, 705, 753, 930, 940, 1004, 1255, 1410, 1457, 1506, 1860, 2510, 2820, 2914, 3012, 3765, 4371, 5020, 5828, 7285, 7530, 7781, 8742, 11797, 14570, 15060, 15562, 17484, 21855, 23343, 23594, 29140, 31124, 35391, 38905, 43710, 46686, 47188, 58985, 70782, 77810, 87420, 93372, 116715, 117970, 141564, 155620, 176955, 233430, 235940, 353910, 365707, 466860, 707820, 731414, 1097121, 1462828, 1828535, 2194242, 3657070, 4388484, 5485605, 7314140, 10971210, 21942420]

約数ペア:

[(1, 21942420), (2, 10971210), (3, 7314140), (4, 5485605), (5, 4388484), (6, 3657070), (10, 2194242), (12, 1828535), (15, 1462828), (20, 1097121), (30, 731414), (31, 707820), (47, 466860), (60, 365707), (62, 353910), (93, 235940), (94, 233430), (124, 176955), (141, 155620), (155, 141564), (186, 117970), (188, 116715), (235, 93372), (251, 87420), (282, 77810), (310, 70782), (372, 58985), (465, 47188), (470, 46686), (502, 43710), (564, 38905), (620, 35391), (705, 31124), (753, 29140), (930, 23594), (940, 23343), (1004, 21855), (1255, 17484), (1410, 15562), (1457, 15060), (1506, 14570), (1860, 11797), (2510, 8742), (2820, 7781), (2914, 7530), (3012, 7285), (3765, 5828), (4371, 5020)]