18897424

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12979}}^1$

素因数の和:13007

約数の個数: 40

約数和(自身を含む): 45066560

約数和(自身を除く): 26169136

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12979, 25958, 51916, 90853, 103832, 168727, 181706, 207664, 337454, 363412, 674908, 726824, 1181089, 1349816, 1453648, 2362178, 2699632, 4724356, 9448712, 18897424]

約数ペア:

[(1, 18897424), (2, 9448712), (4, 4724356), (7, 2699632), (8, 2362178), (13, 1453648), (14, 1349816), (16, 1181089), (26, 726824), (28, 674908), (52, 363412), (56, 337454), (91, 207664), (104, 181706), (112, 168727), (182, 103832), (208, 90853), (364, 51916), (728, 25958), (1456, 12979)]