19878612

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1613}}^1$

素因数の和:1712

約数の個数: 48

約数和(自身を含む): 50615040

約数和(自身を除く): 30736428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 79, 156, 158, 237, 316, 474, 948, 1027, 1613, 2054, 3081, 3226, 4108, 4839, 6162, 6452, 9678, 12324, 19356, 20969, 41938, 62907, 83876, 125814, 127427, 251628, 254854, 382281, 509708, 764562, 1529124, 1656551, 3313102, 4969653, 6626204, 9939306, 19878612]

約数ペア:

[(1, 19878612), (2, 9939306), (3, 6626204), (4, 4969653), (6, 3313102), (12, 1656551), (13, 1529124), (26, 764562), (39, 509708), (52, 382281), (78, 254854), (79, 251628), (156, 127427), (158, 125814), (237, 83876), (316, 62907), (474, 41938), (948, 20969), (1027, 19356), (1613, 12324), (2054, 9678), (3081, 6452), (3226, 6162), (4108, 4839)]