21804816

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{677}}^1$

素因数の和:760

約数の個数: 80

約数和(自身を含む): 62549568

約数和(自身を除く): 40744752

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 61, 66, 88, 122, 132, 176, 183, 244, 264, 366, 488, 528, 671, 677, 732, 976, 1342, 1354, 1464, 2013, 2031, 2684, 2708, 2928, 4026, 4062, 5368, 5416, 7447, 8052, 8124, 10736, 10832, 14894, 16104, 16248, 22341, 29788, 32208, 32496, 41297, 44682, 59576, 82594, 89364, 119152, 123891, 165188, 178728, 247782, 330376, 357456, 454267, 495564, 660752, 908534, 991128, 1362801, 1817068, 1982256, 2725602, 3634136, 5451204, 7268272, 10902408, 21804816]

約数ペア:

[(1, 21804816), (2, 10902408), (3, 7268272), (4, 5451204), (6, 3634136), (8, 2725602), (11, 1982256), (12, 1817068), (16, 1362801), (22, 991128), (24, 908534), (33, 660752), (44, 495564), (48, 454267), (61, 357456), (66, 330376), (88, 247782), (122, 178728), (132, 165188), (176, 123891), (183, 119152), (244, 89364), (264, 82594), (366, 59576), (488, 44682), (528, 41297), (671, 32496), (677, 32208), (732, 29788), (976, 22341), (1342, 16248), (1354, 16104), (1464, 14894), (2013, 10832), (2031, 10736), (2684, 8124), (2708, 8052), (2928, 7447), (4026, 5416), (4062, 5368)]