21403784

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 41234400

約数和(自身を除く): 19830616

約数列:

[1, 2, 4, 8, 59, 118, 137, 236, 274, 331, 472, 548, 662, 1096, 1324, 2648, 8083, 16166, 19529, 32332, 39058, 45347, 64664, 78116, 90694, 156232, 181388, 362776, 2675473, 5350946, 10701892, 21403784]

約数ペア:

[(1, 21403784), (2, 10701892), (4, 5350946), (8, 2675473), (59, 362776), (118, 181388), (137, 156232), (236, 90694), (274, 78116), (331, 64664), (472, 45347), (548, 39058), (662, 32332), (1096, 19529), (1324, 16166), (2648, 8083)]