21366224

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1663}}^1$

素因数の和:1755

約数の個数: 40

約数和(自身を含む): 45806592

約数和(自身を除く): 24440368

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 73, 88, 146, 176, 292, 584, 803, 1168, 1606, 1663, 3212, 3326, 6424, 6652, 12848, 13304, 18293, 26608, 36586, 73172, 121399, 146344, 242798, 292688, 485596, 971192, 1335389, 1942384, 2670778, 5341556, 10683112, 21366224]

約数ペア:

[(1, 21366224), (2, 10683112), (4, 5341556), (8, 2670778), (11, 1942384), (16, 1335389), (22, 971192), (44, 485596), (73, 292688), (88, 242798), (146, 146344), (176, 121399), (292, 73172), (584, 36586), (803, 26608), (1168, 18293), (1606, 13304), (1663, 12848), (3212, 6652), (3326, 6424)]