21119800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8123}}^1$

素因数の和:8152

約数の個数: 48

約数和(自身を含む): 52887240

約数和(自身を除く): 31767440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 8123, 16246, 32492, 40615, 64984, 81230, 105599, 162460, 203075, 211198, 324920, 406150, 422396, 527995, 812300, 844792, 1055990, 1624600, 2111980, 2639975, 4223960, 5279950, 10559900, 21119800]

約数ペア:

[(1, 21119800), (2, 10559900), (4, 5279950), (5, 4223960), (8, 2639975), (10, 2111980), (13, 1624600), (20, 1055990), (25, 844792), (26, 812300), (40, 527995), (50, 422396), (52, 406150), (65, 324920), (100, 211198), (104, 203075), (130, 162460), (200, 105599), (260, 81230), (325, 64984), (520, 40615), (650, 32492), (1300, 16246), (2600, 8123)]