21994856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{11131}}^1$

素因数の和:11169

約数の個数: 32

約数和(自身を含む): 46754400

約数和(自身を除く): 24759544

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 11131, 22262, 44524, 89048, 144703, 211489, 289406, 422978, 578812, 845956, 1157624, 1691912, 2749357, 5498714, 10997428, 21994856]

約数ペア:

[(1, 21994856), (2, 10997428), (4, 5498714), (8, 2749357), (13, 1691912), (19, 1157624), (26, 845956), (38, 578812), (52, 422978), (76, 289406), (104, 211489), (152, 144703), (247, 89048), (494, 44524), (988, 22262), (1976, 11131)]