21673875

素因数分解:

$3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{1993}}^1$

素因数の和:2040

約数の個数: 32

約数和(自身を含む): 37327680

約数和(自身を除く): 15653805

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 125, 145, 375, 435, 725, 1993, 2175, 3625, 5979, 9965, 10875, 29895, 49825, 57797, 149475, 173391, 249125, 288985, 747375, 866955, 1444925, 4334775, 7224625, 21673875]

約数ペア:

[(1, 21673875), (3, 7224625), (5, 4334775), (15, 1444925), (25, 866955), (29, 747375), (75, 288985), (87, 249125), (125, 173391), (145, 149475), (375, 57797), (435, 49825), (725, 29895), (1993, 10875), (2175, 9965), (3625, 5979)]