18955576

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 36504000

約数和(自身を除く): 17548424

約数列:

[1, 2, 4, 8, 79, 89, 158, 178, 316, 337, 356, 632, 674, 712, 1348, 2696, 7031, 14062, 26623, 28124, 29993, 53246, 56248, 59986, 106492, 119972, 212984, 239944, 2369447, 4738894, 9477788, 18955576]

約数ペア:

[(1, 18955576), (2, 9477788), (4, 4738894), (8, 2369447), (79, 239944), (89, 212984), (158, 119972), (178, 106492), (316, 59986), (337, 56248), (356, 53246), (632, 29993), (674, 28124), (712, 26623), (1348, 14062), (2696, 7031)]