21723548

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{281}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 47755008

約数和(自身を除く): 26031460

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 251, 281, 308, 502, 562, 1004, 1124, 1757, 1967, 2761, 3091, 3514, 3934, 5522, 6182, 7028, 7868, 11044, 12364, 19327, 21637, 38654, 43274, 70531, 77308, 86548, 141062, 282124, 493717, 775841, 987434, 1551682, 1974868, 3103364, 5430887, 10861774, 21723548]

約数ペア:

[(1, 21723548), (2, 10861774), (4, 5430887), (7, 3103364), (11, 1974868), (14, 1551682), (22, 987434), (28, 775841), (44, 493717), (77, 282124), (154, 141062), (251, 86548), (281, 77308), (308, 70531), (502, 43274), (562, 38654), (1004, 21637), (1124, 19327), (1757, 12364), (1967, 11044), (2761, 7868), (3091, 7028), (3514, 6182), (3934, 5522)]