19915024

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{347}}^1$

素因数の和:583

約数の個数: 40

約数和(自身を含む): 41167008

約数和(自身を除く): 21251984

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 211, 272, 347, 422, 694, 844, 1388, 1688, 2776, 3376, 3587, 5552, 5899, 7174, 11798, 14348, 23596, 28696, 47192, 57392, 73217, 94384, 146434, 292868, 585736, 1171472, 1244689, 2489378, 4978756, 9957512, 19915024]

約数ペア:

[(1, 19915024), (2, 9957512), (4, 4978756), (8, 2489378), (16, 1244689), (17, 1171472), (34, 585736), (68, 292868), (136, 146434), (211, 94384), (272, 73217), (347, 57392), (422, 47192), (694, 28696), (844, 23596), (1388, 14348), (1688, 11798), (2776, 7174), (3376, 5899), (3587, 5552)]