21695700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5563}}^1$

素因数の和:5593

約数の個数: 72

約数和(自身を含む): 67613728

約数和(自身を除く): 45918028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5563, 11126, 16689, 22252, 27815, 33378, 55630, 66756, 72319, 83445, 111260, 139075, 144638, 166890, 216957, 278150, 289276, 333780, 361595, 417225, 433914, 556300, 723190, 834450, 867828, 1084785, 1446380, 1668900, 1807975, 2169570, 3615950, 4339140, 5423925, 7231900, 10847850, 21695700]

約数ペア:

[(1, 21695700), (2, 10847850), (3, 7231900), (4, 5423925), (5, 4339140), (6, 3615950), (10, 2169570), (12, 1807975), (13, 1668900), (15, 1446380), (20, 1084785), (25, 867828), (26, 834450), (30, 723190), (39, 556300), (50, 433914), (52, 417225), (60, 361595), (65, 333780), (75, 289276), (78, 278150), (100, 216957), (130, 166890), (150, 144638), (156, 139075), (195, 111260), (260, 83445), (300, 72319), (325, 66756), (390, 55630), (650, 33378), (780, 27815), (975, 22252), (1300, 16689), (1950, 11126), (3900, 5563)]