21721167376

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1191899}}^1$

素因数の和:1191991

約数の個数: 40

約数和(自身を含む): 45225453600

約数和(自身を除く): 23504286224

約数列:

[1, 2, 4, 8, 16, 17, 34, 67, 68, 134, 136, 268, 272, 536, 1072, 1139, 2278, 4556, 9112, 18224, 1191899, 2383798, 4767596, 9535192, 19070384, 20262283, 40524566, 79857233, 81049132, 159714466, 162098264, 319428932, 324196528, 638857864, 1277715728, 1357572961, 2715145922, 5430291844, 10860583688, 21721167376]

約数ペア:

[(1, 21721167376), (2, 10860583688), (4, 5430291844), (8, 2715145922), (16, 1357572961), (17, 1277715728), (34, 638857864), (67, 324196528), (68, 319428932), (134, 162098264), (136, 159714466), (268, 81049132), (272, 79857233), (536, 40524566), (1072, 20262283), (1139, 19070384), (2278, 9535192), (4556, 4767596), (9112, 2383798), (18224, 1191899)]