21787186791

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{1701991}}^1$

素因数の和:1702262

約数の個数: 16

約数和(自身を含む): 30880942848

約数和(自身を除く): 9093756057

約数列:

[1, 3, 17, 51, 251, 753, 4267, 12801, 1701991, 5105973, 28933847, 86801541, 427199741, 1281599223, 7262395597, 21787186791]

約数ペア:

[(1, 21787186791), (3, 7262395597), (17, 1281599223), (51, 427199741), (251, 86801541), (753, 28933847), (4267, 5105973), (12801, 1701991)]