21077250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 53239680

約数和(自身を除く): 32162430

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 157, 179, 250, 314, 358, 375, 471, 537, 750, 785, 895, 942, 1074, 1570, 1790, 2355, 2685, 3925, 4475, 4710, 5370, 7850, 8950, 11775, 13425, 19625, 22375, 23550, 26850, 28103, 39250, 44750, 56206, 58875, 67125, 84309, 117750, 134250, 140515, 168618, 281030, 421545, 702575, 843090, 1405150, 2107725, 3512875, 4215450, 7025750, 10538625, 21077250]

約数ペア:

[(1, 21077250), (2, 10538625), (3, 7025750), (5, 4215450), (6, 3512875), (10, 2107725), (15, 1405150), (25, 843090), (30, 702575), (50, 421545), (75, 281030), (125, 168618), (150, 140515), (157, 134250), (179, 117750), (250, 84309), (314, 67125), (358, 58875), (375, 56206), (471, 44750), (537, 39250), (750, 28103), (785, 26850), (895, 23550), (942, 22375), (1074, 19625), (1570, 13425), (1790, 11775), (2355, 8950), (2685, 7850), (3925, 5370), (4475, 4710)]