21960975

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 39283200

約数和(自身を除く): 17322225

約数列:

[1, 3, 5, 15, 23, 25, 29, 69, 75, 87, 115, 145, 345, 435, 439, 575, 667, 725, 1317, 1725, 2001, 2175, 2195, 3335, 6585, 10005, 10097, 10975, 12731, 16675, 30291, 32925, 38193, 50025, 50485, 63655, 151455, 190965, 252425, 292813, 318275, 757275, 878439, 954825, 1464065, 4392195, 7320325, 21960975]

約数ペア:

[(1, 21960975), (3, 7320325), (5, 4392195), (15, 1464065), (23, 954825), (25, 878439), (29, 757275), (69, 318275), (75, 292813), (87, 252425), (115, 190965), (145, 151455), (345, 63655), (435, 50485), (439, 50025), (575, 38193), (667, 32925), (725, 30291), (1317, 16675), (1725, 12731), (2001, 10975), (2175, 10097), (2195, 10005), (3335, 6585)]