21576944

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3449}}^1$

素因数の和:3497

約数の個数: 40

約数和(自身を含む): 46202400

約数和(自身を除く): 24625456

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 68, 92, 136, 184, 272, 368, 391, 782, 1564, 3128, 3449, 6256, 6898, 13796, 27592, 55184, 58633, 79327, 117266, 158654, 234532, 317308, 469064, 634616, 938128, 1269232, 1348559, 2697118, 5394236, 10788472, 21576944]

約数ペア:

[(1, 21576944), (2, 10788472), (4, 5394236), (8, 2697118), (16, 1348559), (17, 1269232), (23, 938128), (34, 634616), (46, 469064), (68, 317308), (92, 234532), (136, 158654), (184, 117266), (272, 79327), (368, 58633), (391, 55184), (782, 27592), (1564, 13796), (3128, 6898), (3449, 6256)]