21957364

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1669}}^1$

素因数の和:1720

約数の個数: 48

約数和(自身を含む): 47134080

約数和(自身を除く): 25176716

約数列:

[1, 2, 4, 11, 13, 22, 23, 26, 44, 46, 52, 92, 143, 253, 286, 299, 506, 572, 598, 1012, 1196, 1669, 3289, 3338, 6578, 6676, 13156, 18359, 21697, 36718, 38387, 43394, 73436, 76774, 86788, 153548, 238667, 422257, 477334, 499031, 844514, 954668, 998062, 1689028, 1996124, 5489341, 10978682, 21957364]

約数ペア:

[(1, 21957364), (2, 10978682), (4, 5489341), (11, 1996124), (13, 1689028), (22, 998062), (23, 954668), (26, 844514), (44, 499031), (46, 477334), (52, 422257), (92, 238667), (143, 153548), (253, 86788), (286, 76774), (299, 73436), (506, 43394), (572, 38387), (598, 36718), (1012, 21697), (1196, 18359), (1669, 13156), (3289, 6676), (3338, 6578)]