21244917

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{5273}}^1$

素因数の和:5372

約数の個数: 16

約数和(自身を含む): 30378240

約数和(自身を除く): 9133323

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 5273, 15819, 89641, 268923, 416567, 1249701, 7081639, 21244917]

約数ペア:

[(1, 21244917), (3, 7081639), (17, 1249701), (51, 416567), (79, 268923), (237, 89641), (1343, 15819), (4029, 5273)]