21445528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10853}}^1$

素因数の和:10891

約数の個数: 32

約数和(自身を含む): 45586800

約数和(自身を除く): 24141272

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10853, 21706, 43412, 86824, 141089, 206207, 282178, 412414, 564356, 824828, 1128712, 1649656, 2680691, 5361382, 10722764, 21445528]

約数ペア:

[(1, 21445528), (2, 10722764), (4, 5361382), (8, 2680691), (13, 1649656), (19, 1128712), (26, 824828), (38, 564356), (52, 412414), (76, 282178), (104, 206207), (152, 141089), (247, 86824), (494, 43412), (988, 21706), (1976, 10853)]