21849375

素因数分解:

$3^1\times 5^4\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:337

約数の個数: 40

約数和(自身を含む): 37388032

約数和(自身を除く): 15538657

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 271, 375, 625, 645, 813, 1075, 1355, 1875, 3225, 4065, 5375, 6775, 11653, 16125, 20325, 26875, 33875, 34959, 58265, 80625, 101625, 169375, 174795, 291325, 508125, 873975, 1456625, 4369875, 7283125, 21849375]

約数ペア:

[(1, 21849375), (3, 7283125), (5, 4369875), (15, 1456625), (25, 873975), (43, 508125), (75, 291325), (125, 174795), (129, 169375), (215, 101625), (271, 80625), (375, 58265), (625, 34959), (645, 33875), (813, 26875), (1075, 20325), (1355, 16125), (1875, 11653), (3225, 6775), (4065, 5375)]