20579325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21107}}^1$

素因数の和:21133

約数の個数: 24

約数和(自身を含む): 36643488

約数和(自身を除く): 16064163

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 21107, 63321, 105535, 274391, 316605, 527675, 823173, 1371955, 1583025, 4115865, 6859775, 20579325]

約数ペア:

[(1, 20579325), (3, 6859775), (5, 4115865), (13, 1583025), (15, 1371955), (25, 823173), (39, 527675), (65, 316605), (75, 274391), (195, 105535), (325, 63321), (975, 21107)]