18644236

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{59}}^2\times {\mathrm{103}}^1$

素因数の和:238

約数の個数: 36

約数和(自身を含む): 36089872

約数和(自身を除く): 17445636

約数列:

[1, 2, 4, 13, 26, 52, 59, 103, 118, 206, 236, 412, 767, 1339, 1534, 2678, 3068, 3481, 5356, 6077, 6962, 12154, 13924, 24308, 45253, 79001, 90506, 158002, 181012, 316004, 358543, 717086, 1434172, 4661059, 9322118, 18644236]

約数ペア:

[(1, 18644236), (2, 9322118), (4, 4661059), (13, 1434172), (26, 717086), (52, 358543), (59, 316004), (103, 181012), (118, 158002), (206, 90506), (236, 79001), (412, 45253), (767, 24308), (1339, 13924), (1534, 12154), (2678, 6962), (3068, 6077), (3481, 5356)]