21233368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3347}}^1$

素因数の和:3427

約数の個数: 32

約数和(自身を含む): 43590960

約数和(自身を除く): 22357592

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 3347, 6344, 6694, 13388, 26776, 43511, 87022, 174044, 204167, 348088, 408334, 816668, 1633336, 2654171, 5308342, 10616684, 21233368]

約数ペア:

[(1, 21233368), (2, 10616684), (4, 5308342), (8, 2654171), (13, 1633336), (26, 816668), (52, 408334), (61, 348088), (104, 204167), (122, 174044), (244, 87022), (488, 43511), (793, 26776), (1586, 13388), (3172, 6694), (3347, 6344)]