18787652

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 38292912

約数和(自身を除く): 19505260

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 53, 68, 106, 212, 221, 401, 442, 689, 802, 884, 901, 1378, 1604, 1802, 2756, 3604, 5213, 6817, 10426, 11713, 13634, 20852, 21253, 23426, 27268, 42506, 46852, 85012, 88621, 177242, 276289, 354484, 361301, 552578, 722602, 1105156, 1445204, 4696913, 9393826, 18787652]

約数ペア:

[(1, 18787652), (2, 9393826), (4, 4696913), (13, 1445204), (17, 1105156), (26, 722602), (34, 552578), (52, 361301), (53, 354484), (68, 276289), (106, 177242), (212, 88621), (221, 85012), (401, 46852), (442, 42506), (689, 27268), (802, 23426), (884, 21253), (901, 20852), (1378, 13634), (1604, 11713), (1802, 10426), (2756, 6817), (3604, 5213)]