7921784

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{211}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 16962120

約数和(自身を除く): 9040336

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 211, 247, 361, 422, 494, 722, 844, 988, 1444, 1688, 1976, 2743, 2888, 4009, 4693, 5486, 8018, 9386, 10972, 16036, 18772, 21944, 32072, 37544, 52117, 76171, 104234, 152342, 208468, 304684, 416936, 609368, 990223, 1980446, 3960892, 7921784]

約数ペア:

[(1, 7921784), (2, 3960892), (4, 1980446), (8, 990223), (13, 609368), (19, 416936), (26, 304684), (38, 208468), (52, 152342), (76, 104234), (104, 76171), (152, 52117), (211, 37544), (247, 32072), (361, 21944), (422, 18772), (494, 16036), (722, 10972), (844, 9386), (988, 8018), (1444, 5486), (1688, 4693), (1976, 4009), (2743, 2888)]