19987376

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73483}}^1$

素因数の和:73508

約数の個数: 20

約数和(自身を含む): 41004072

約数和(自身を除く): 21016696

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 73483, 146966, 293932, 587864, 1175728, 1249211, 2498422, 4996844, 9993688, 19987376]

約数ペア:

[(1, 19987376), (2, 9993688), (4, 4996844), (8, 2498422), (16, 1249211), (17, 1175728), (34, 587864), (68, 293932), (136, 146966), (272, 73483)]