20694388

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{13}}^2\times {\mathrm{23}}^1$

素因数の和:86

約数の個数: 72

約数和(自身を含む): 45009216

約数和(自身を除く): 24314828

約数列:

[1, 2, 4, 11, 13, 22, 23, 26, 44, 46, 52, 92, 121, 143, 169, 242, 253, 286, 299, 338, 484, 506, 572, 598, 676, 1012, 1196, 1331, 1573, 1859, 2662, 2783, 3146, 3289, 3718, 3887, 5324, 5566, 6292, 6578, 7436, 7774, 11132, 13156, 15548, 17303, 20449, 30613, 34606, 36179, 40898, 42757, 61226, 69212, 72358, 81796, 85514, 122452, 144716, 171028, 224939, 397969, 449878, 470327, 795938, 899756, 940654, 1591876, 1881308, 5173597, 10347194, 20694388]

約数ペア:

[(1, 20694388), (2, 10347194), (4, 5173597), (11, 1881308), (13, 1591876), (22, 940654), (23, 899756), (26, 795938), (44, 470327), (46, 449878), (52, 397969), (92, 224939), (121, 171028), (143, 144716), (169, 122452), (242, 85514), (253, 81796), (286, 72358), (299, 69212), (338, 61226), (484, 42757), (506, 40898), (572, 36179), (598, 34606), (676, 30613), (1012, 20449), (1196, 17303), (1331, 15548), (1573, 13156), (1859, 11132), (2662, 7774), (2783, 7436), (3146, 6578), (3289, 6292), (3718, 5566), (3887, 5324)]