21134560

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4261}}^1$

素因数の和:4307

約数の個数: 48

約数和(自身を含む): 51553152

約数和(自身を除く): 30418592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4261, 4960, 8522, 17044, 21305, 34088, 42610, 68176, 85220, 132091, 136352, 170440, 264182, 340880, 528364, 660455, 681760, 1056728, 1320910, 2113456, 2641820, 4226912, 5283640, 10567280, 21134560]

約数ペア:

[(1, 21134560), (2, 10567280), (4, 5283640), (5, 4226912), (8, 2641820), (10, 2113456), (16, 1320910), (20, 1056728), (31, 681760), (32, 660455), (40, 528364), (62, 340880), (80, 264182), (124, 170440), (155, 136352), (160, 132091), (248, 85220), (310, 68176), (496, 42610), (620, 34088), (992, 21305), (1240, 17044), (2480, 8522), (4261, 4960)]