21104790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^4\times {\mathrm{293}}^1$

素因数の和:331

約数の個数: 80

約数和(自身を含む): 59291568

約数和(自身を除く): 38186778

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 293, 294, 343, 490, 586, 686, 735, 879, 1029, 1465, 1470, 1715, 1758, 2051, 2058, 2401, 2930, 3430, 4102, 4395, 4802, 5145, 6153, 7203, 8790, 10255, 10290, 12005, 12306, 14357, 14406, 20510, 24010, 28714, 30765, 36015, 43071, 61530, 71785, 72030, 86142, 100499, 143570, 200998, 215355, 301497, 430710, 502495, 602994, 703493, 1004990, 1406986, 1507485, 2110479, 3014970, 3517465, 4220958, 7034930, 10552395, 21104790]

約数ペア:

[(1, 21104790), (2, 10552395), (3, 7034930), (5, 4220958), (6, 3517465), (7, 3014970), (10, 2110479), (14, 1507485), (15, 1406986), (21, 1004990), (30, 703493), (35, 602994), (42, 502495), (49, 430710), (70, 301497), (98, 215355), (105, 200998), (147, 143570), (210, 100499), (245, 86142), (293, 72030), (294, 71785), (343, 61530), (490, 43071), (586, 36015), (686, 30765), (735, 28714), (879, 24010), (1029, 20510), (1465, 14406), (1470, 14357), (1715, 12306), (1758, 12005), (2051, 10290), (2058, 10255), (2401, 8790), (2930, 7203), (3430, 6153), (4102, 5145), (4395, 4802)]