21270375

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:138

約数の個数: 96

約数和(自身を含む): 45621888

約数和(自身を除く): 24351513

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 37, 45, 63, 73, 75, 105, 111, 125, 175, 185, 219, 225, 259, 315, 333, 365, 375, 511, 525, 555, 657, 777, 875, 925, 1095, 1125, 1295, 1533, 1575, 1665, 1825, 2331, 2555, 2625, 2701, 2775, 3285, 3885, 4599, 4625, 5475, 6475, 7665, 7875, 8103, 8325, 9125, 11655, 12775, 13505, 13875, 16425, 18907, 19425, 22995, 24309, 27375, 32375, 38325, 40515, 41625, 56721, 58275, 63875, 67525, 82125, 94535, 97125, 114975, 121545, 170163, 191625, 202575, 283605, 291375, 337625, 472675, 574875, 607725, 850815, 1012875, 1418025, 2363375, 3038625, 4254075, 7090125, 21270375]

約数ペア:

[(1, 21270375), (3, 7090125), (5, 4254075), (7, 3038625), (9, 2363375), (15, 1418025), (21, 1012875), (25, 850815), (35, 607725), (37, 574875), (45, 472675), (63, 337625), (73, 291375), (75, 283605), (105, 202575), (111, 191625), (125, 170163), (175, 121545), (185, 114975), (219, 97125), (225, 94535), (259, 82125), (315, 67525), (333, 63875), (365, 58275), (375, 56721), (511, 41625), (525, 40515), (555, 38325), (657, 32375), (777, 27375), (875, 24309), (925, 22995), (1095, 19425), (1125, 18907), (1295, 16425), (1533, 13875), (1575, 13505), (1665, 12775), (1825, 11655), (2331, 9125), (2555, 8325), (2625, 8103), (2701, 7875), (2775, 7665), (3285, 6475), (3885, 5475), (4599, 4625)]