20661344

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{743}}^1$

素因数の和:843

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24335776

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 79, 88, 158, 176, 316, 352, 632, 743, 869, 1264, 1486, 1738, 2528, 2972, 3476, 5944, 6952, 8173, 11888, 13904, 16346, 23776, 27808, 32692, 58697, 65384, 117394, 130768, 234788, 261536, 469576, 645667, 939152, 1291334, 1878304, 2582668, 5165336, 10330672, 20661344]

約数ペア:

[(1, 20661344), (2, 10330672), (4, 5165336), (8, 2582668), (11, 1878304), (16, 1291334), (22, 939152), (32, 645667), (44, 469576), (79, 261536), (88, 234788), (158, 130768), (176, 117394), (316, 65384), (352, 58697), (632, 32692), (743, 27808), (869, 23776), (1264, 16346), (1486, 13904), (1738, 11888), (2528, 8173), (2972, 6952), (3476, 5944)]