21349986

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{719}}^1$

素因数の和:839

約数の個数: 48

約数和(自身を含む): 50232960

約数和(自身を除く): 28882974

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 101, 147, 202, 294, 303, 606, 707, 719, 1414, 1438, 2121, 2157, 4242, 4314, 4949, 5033, 9898, 10066, 14847, 15099, 29694, 30198, 35231, 70462, 72619, 105693, 145238, 211386, 217857, 435714, 508333, 1016666, 1524999, 3049998, 3558331, 7116662, 10674993, 21349986]

約数ペア:

[(1, 21349986), (2, 10674993), (3, 7116662), (6, 3558331), (7, 3049998), (14, 1524999), (21, 1016666), (42, 508333), (49, 435714), (98, 217857), (101, 211386), (147, 145238), (202, 105693), (294, 72619), (303, 70462), (606, 35231), (707, 30198), (719, 29694), (1414, 15099), (1438, 14847), (2121, 10066), (2157, 9898), (4242, 5033), (4314, 4949)]