20921394

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{743}}^1$

素因数の和:799

約数の個数: 48

約数和(自身を含む): 47621952

約数和(自身を除く): 26700558

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 114, 247, 361, 494, 722, 741, 743, 1083, 1482, 1486, 2166, 2229, 4458, 4693, 9386, 9659, 14079, 14117, 19318, 28158, 28234, 28977, 42351, 57954, 84702, 183521, 268223, 367042, 536446, 550563, 804669, 1101126, 1609338, 3486899, 6973798, 10460697, 20921394]

約数ペア:

[(1, 20921394), (2, 10460697), (3, 6973798), (6, 3486899), (13, 1609338), (19, 1101126), (26, 804669), (38, 550563), (39, 536446), (57, 367042), (78, 268223), (114, 183521), (247, 84702), (361, 57954), (494, 42351), (722, 28977), (741, 28234), (743, 28158), (1083, 19318), (1482, 14117), (1486, 14079), (2166, 9659), (2229, 9386), (4458, 4693)]