21133856

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{733}}^1$

素因数の和:813

約数の個数: 48

約数和(自身を含む): 44947224

約数和(自身を除く): 23813368

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 53, 68, 106, 136, 212, 272, 424, 544, 733, 848, 901, 1466, 1696, 1802, 2932, 3604, 5864, 7208, 11728, 12461, 14416, 23456, 24922, 28832, 38849, 49844, 77698, 99688, 155396, 199376, 310792, 398752, 621584, 660433, 1243168, 1320866, 2641732, 5283464, 10566928, 21133856]

約数ペア:

[(1, 21133856), (2, 10566928), (4, 5283464), (8, 2641732), (16, 1320866), (17, 1243168), (32, 660433), (34, 621584), (53, 398752), (68, 310792), (106, 199376), (136, 155396), (212, 99688), (272, 77698), (424, 49844), (544, 38849), (733, 28832), (848, 24922), (901, 23456), (1466, 14416), (1696, 12461), (1802, 11728), (2932, 7208), (3604, 5864)]