21429675

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 41434848

約数和(自身を除く): 20005173

約数列:

[1, 3, 5, 9, 15, 23, 25, 41, 45, 69, 75, 101, 115, 123, 205, 207, 225, 303, 345, 369, 505, 575, 615, 909, 943, 1025, 1035, 1515, 1725, 1845, 2323, 2525, 2829, 3075, 4141, 4545, 4715, 5175, 6969, 7575, 8487, 9225, 11615, 12423, 14145, 20705, 20907, 22725, 23575, 34845, 37269, 42435, 58075, 62115, 70725, 95243, 103525, 104535, 174225, 186345, 212175, 285729, 310575, 476215, 522675, 857187, 931725, 1428645, 2381075, 4285935, 7143225, 21429675]

約数ペア:

[(1, 21429675), (3, 7143225), (5, 4285935), (9, 2381075), (15, 1428645), (23, 931725), (25, 857187), (41, 522675), (45, 476215), (69, 310575), (75, 285729), (101, 212175), (115, 186345), (123, 174225), (205, 104535), (207, 103525), (225, 95243), (303, 70725), (345, 62115), (369, 58075), (505, 42435), (575, 37269), (615, 34845), (909, 23575), (943, 22725), (1025, 20907), (1035, 20705), (1515, 14145), (1725, 12423), (1845, 11615), (2323, 9225), (2525, 8487), (2829, 7575), (3075, 6969), (4141, 5175), (4545, 4715)]