21739498

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1571}}^1$

素因数の和:1638

約数の個数: 32

約数和(自身を含む): 38708928

約数和(自身を除く): 16969430

約数列:

[1, 2, 11, 17, 22, 34, 37, 74, 187, 374, 407, 629, 814, 1258, 1571, 3142, 6919, 13838, 17281, 26707, 34562, 53414, 58127, 116254, 293777, 587554, 639397, 988159, 1278794, 1976318, 10869749, 21739498]

約数ペア:

[(1, 21739498), (2, 10869749), (11, 1976318), (17, 1278794), (22, 988159), (34, 639397), (37, 587554), (74, 293777), (187, 116254), (374, 58127), (407, 53414), (629, 34562), (814, 26707), (1258, 17281), (1571, 13838), (3142, 6919)]