20487675

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21013}}^1$

素因数の和:21039

約数の個数: 24

約数和(自身を含む): 36480304

約数和(自身を除く): 15992629

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 21013, 63039, 105065, 273169, 315195, 525325, 819507, 1365845, 1575975, 4097535, 6829225, 20487675]

約数ペア:

[(1, 20487675), (3, 6829225), (5, 4097535), (13, 1575975), (15, 1365845), (25, 819507), (39, 525325), (65, 315195), (75, 273169), (195, 105065), (325, 63039), (975, 21013)]