21000620145

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32559101}}^1$

素因数の和:32559152

約数の個数: 16

約数和(自身を含む): 34382411712

約数和(自身を除く): 13381791567

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32559101, 97677303, 162795505, 488386515, 1400041343, 4200124029, 7000206715, 21000620145]

約数ペア:

[(1, 21000620145), (3, 7000206715), (5, 4200124029), (15, 1400041343), (43, 488386515), (129, 162795505), (215, 97677303), (645, 32559101)]