21566250

素因数分解:

$2^1\times 3^5\times 5^4\times {\mathrm{71}}^1$

素因数の和:108

約数の個数: 120

約数和(自身を含む): 61405344

約数和(自身を除く): 39839094

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 71, 75, 81, 90, 125, 135, 142, 150, 162, 213, 225, 243, 250, 270, 355, 375, 405, 426, 450, 486, 625, 639, 675, 710, 750, 810, 1065, 1125, 1215, 1250, 1278, 1350, 1775, 1875, 1917, 2025, 2130, 2250, 2430, 3195, 3375, 3550, 3750, 3834, 4050, 5325, 5625, 5751, 6075, 6390, 6750, 8875, 9585, 10125, 10650, 11250, 11502, 12150, 15975, 16875, 17253, 17750, 19170, 20250, 26625, 28755, 30375, 31950, 33750, 34506, 44375, 47925, 50625, 53250, 57510, 60750, 79875, 86265, 88750, 95850, 101250, 133125, 143775, 151875, 159750, 172530, 239625, 266250, 287550, 303750, 399375, 431325, 479250, 718875, 798750, 862650, 1198125, 1437750, 2156625, 2396250, 3594375, 4313250, 7188750, 10783125, 21566250]

約数ペア:

[(1, 21566250), (2, 10783125), (3, 7188750), (5, 4313250), (6, 3594375), (9, 2396250), (10, 2156625), (15, 1437750), (18, 1198125), (25, 862650), (27, 798750), (30, 718875), (45, 479250), (50, 431325), (54, 399375), (71, 303750), (75, 287550), (81, 266250), (90, 239625), (125, 172530), (135, 159750), (142, 151875), (150, 143775), (162, 133125), (213, 101250), (225, 95850), (243, 88750), (250, 86265), (270, 79875), (355, 60750), (375, 57510), (405, 53250), (426, 50625), (450, 47925), (486, 44375), (625, 34506), (639, 33750), (675, 31950), (710, 30375), (750, 28755), (810, 26625), (1065, 20250), (1125, 19170), (1215, 17750), (1250, 17253), (1278, 16875), (1350, 15975), (1775, 12150), (1875, 11502), (1917, 11250), (2025, 10650), (2130, 10125), (2250, 9585), (2430, 8875), (3195, 6750), (3375, 6390), (3550, 6075), (3750, 5751), (3834, 5625), (4050, 5325)]