21252816

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{11353}}^1$

素因数の和:11380

約数の個数: 60

約数和(自身を含む): 64059268

約数和(自身を除く): 42806452

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 11353, 22706, 34059, 45412, 68118, 90824, 102177, 136236, 147589, 181648, 204354, 272472, 295178, 408708, 442767, 544944, 590356, 817416, 885534, 1180712, 1328301, 1634832, 1771068, 2361424, 2656602, 3542136, 5313204, 7084272, 10626408, 21252816]

約数ペア:

[(1, 21252816), (2, 10626408), (3, 7084272), (4, 5313204), (6, 3542136), (8, 2656602), (9, 2361424), (12, 1771068), (13, 1634832), (16, 1328301), (18, 1180712), (24, 885534), (26, 817416), (36, 590356), (39, 544944), (48, 442767), (52, 408708), (72, 295178), (78, 272472), (104, 204354), (117, 181648), (144, 147589), (156, 136236), (208, 102177), (234, 90824), (312, 68118), (468, 45412), (624, 34059), (936, 22706), (1872, 11353)]