21311200

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1567}}^1$

素因数の和:1604

約数の個数: 72

約数和(自身を含む): 55121472

約数和(自身を除く): 33810272

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 136, 160, 170, 200, 272, 340, 400, 425, 544, 680, 800, 850, 1360, 1567, 1700, 2720, 3134, 3400, 6268, 6800, 7835, 12536, 13600, 15670, 25072, 26639, 31340, 39175, 50144, 53278, 62680, 78350, 106556, 125360, 133195, 156700, 213112, 250720, 266390, 313400, 426224, 532780, 626800, 665975, 852448, 1065560, 1253600, 1331950, 2131120, 2663900, 4262240, 5327800, 10655600, 21311200]

約数ペア:

[(1, 21311200), (2, 10655600), (4, 5327800), (5, 4262240), (8, 2663900), (10, 2131120), (16, 1331950), (17, 1253600), (20, 1065560), (25, 852448), (32, 665975), (34, 626800), (40, 532780), (50, 426224), (68, 313400), (80, 266390), (85, 250720), (100, 213112), (136, 156700), (160, 133195), (170, 125360), (200, 106556), (272, 78350), (340, 62680), (400, 53278), (425, 50144), (544, 39175), (680, 31340), (800, 26639), (850, 25072), (1360, 15670), (1567, 13600), (1700, 12536), (2720, 7835), (3134, 6800), (3400, 6268)]