21031718694

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1\times {\mathrm{20023}}^1$

素因数の和:20405

約数の個数: 64

約数和(自身を含む): 48788075520

約数和(自身を除く): 27756356826

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 89, 178, 267, 281, 534, 562, 623, 843, 1246, 1686, 1869, 1967, 3738, 3934, 5901, 11802, 20023, 25009, 40046, 50018, 60069, 75027, 120138, 140161, 150054, 175063, 280322, 350126, 420483, 525189, 840966, 1050378, 1782047, 3564094, 5346141, 5626463, 10692282, 11252926, 12474329, 16879389, 24948658, 33758778, 37422987, 39385241, 74845974, 78770482, 118155723, 236311446, 500755207, 1001510414, 1502265621, 3004531242, 3505286449, 7010572898, 10515859347, 21031718694]

約数ペア:

[(1, 21031718694), (2, 10515859347), (3, 7010572898), (6, 3505286449), (7, 3004531242), (14, 1502265621), (21, 1001510414), (42, 500755207), (89, 236311446), (178, 118155723), (267, 78770482), (281, 74845974), (534, 39385241), (562, 37422987), (623, 33758778), (843, 24948658), (1246, 16879389), (1686, 12474329), (1869, 11252926), (1967, 10692282), (3738, 5626463), (3934, 5346141), (5901, 3564094), (11802, 1782047), (20023, 1050378), (25009, 840966), (40046, 525189), (50018, 420483), (60069, 350126), (75027, 280322), (120138, 175063), (140161, 150054)]