21599500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3323}}^1$

素因数の和:3355

約数の個数: 48

約数和(自身を含む): 50817312

約数和(自身を除く): 29217812

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 3323, 6500, 6646, 13292, 16615, 33230, 43199, 66460, 83075, 86398, 166150, 172796, 215995, 332300, 415375, 431990, 830750, 863980, 1079975, 1661500, 2159950, 4319900, 5399875, 10799750, 21599500]

約数ペア:

[(1, 21599500), (2, 10799750), (4, 5399875), (5, 4319900), (10, 2159950), (13, 1661500), (20, 1079975), (25, 863980), (26, 830750), (50, 431990), (52, 415375), (65, 332300), (100, 215995), (125, 172796), (130, 166150), (250, 86398), (260, 83075), (325, 66460), (500, 43199), (650, 33230), (1300, 16615), (1625, 13292), (3250, 6646), (3323, 6500)]