21313810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 45948672

約数和(自身を除く): 24634862

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 73, 86, 97, 146, 194, 215, 301, 365, 430, 485, 511, 602, 679, 730, 970, 1022, 1358, 1505, 2555, 3010, 3139, 3395, 4171, 5110, 6278, 6790, 7081, 8342, 14162, 15695, 20855, 21973, 29197, 31390, 35405, 41710, 43946, 49567, 58394, 70810, 99134, 109865, 145985, 219730, 247835, 291970, 304483, 495670, 608966, 1522415, 2131381, 3044830, 4262762, 10656905, 21313810]

約数ペア:

[(1, 21313810), (2, 10656905), (5, 4262762), (7, 3044830), (10, 2131381), (14, 1522415), (35, 608966), (43, 495670), (70, 304483), (73, 291970), (86, 247835), (97, 219730), (146, 145985), (194, 109865), (215, 99134), (301, 70810), (365, 58394), (430, 49567), (485, 43946), (511, 41710), (602, 35405), (679, 31390), (730, 29197), (970, 21973), (1022, 20855), (1358, 15695), (1505, 14162), (2555, 8342), (3010, 7081), (3139, 6790), (3395, 6278), (4171, 5110)]