21155078

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65699}}^1$

素因数の和:65731

約数の個数: 16

約数和(自身を含む): 37843200

約数和(自身を除く): 16688122

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65699, 131398, 459893, 919786, 1511077, 3022154, 10577539, 21155078]

約数ペア:

[(1, 21155078), (2, 10577539), (7, 3022154), (14, 1511077), (23, 919786), (46, 459893), (161, 131398), (322, 65699)]