21353488

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 60

約数和(自身を含む): 45951300

約数和(自身を除く): 24597812

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 149, 169, 208, 212, 298, 338, 424, 596, 676, 689, 848, 1192, 1352, 1378, 1937, 2384, 2704, 2756, 3874, 5512, 7748, 7897, 8957, 11024, 15496, 15794, 17914, 25181, 30992, 31588, 35828, 50362, 63176, 71656, 100724, 102661, 126352, 143312, 201448, 205322, 402896, 410644, 821288, 1334593, 1642576, 2669186, 5338372, 10676744, 21353488]

約数ペア:

[(1, 21353488), (2, 10676744), (4, 5338372), (8, 2669186), (13, 1642576), (16, 1334593), (26, 821288), (52, 410644), (53, 402896), (104, 205322), (106, 201448), (149, 143312), (169, 126352), (208, 102661), (212, 100724), (298, 71656), (338, 63176), (424, 50362), (596, 35828), (676, 31588), (689, 30992), (848, 25181), (1192, 17914), (1352, 15794), (1378, 15496), (1937, 11024), (2384, 8957), (2704, 7897), (2756, 7748), (3874, 5512)]