20641572

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{811}}^1$

素因数の和:929

約数の個数: 72

約数和(自身を含む): 60295872

約数和(自身を除く): 39654300

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 101, 126, 202, 252, 303, 404, 606, 707, 811, 909, 1212, 1414, 1622, 1818, 2121, 2433, 2828, 3244, 3636, 4242, 4866, 5677, 6363, 7299, 8484, 9732, 11354, 12726, 14598, 17031, 22708, 25452, 29196, 34062, 51093, 68124, 81911, 102186, 163822, 204372, 245733, 327644, 491466, 573377, 737199, 982932, 1146754, 1474398, 1720131, 2293508, 2948796, 3440262, 5160393, 6880524, 10320786, 20641572]

約数ペア:

[(1, 20641572), (2, 10320786), (3, 6880524), (4, 5160393), (6, 3440262), (7, 2948796), (9, 2293508), (12, 1720131), (14, 1474398), (18, 1146754), (21, 982932), (28, 737199), (36, 573377), (42, 491466), (63, 327644), (84, 245733), (101, 204372), (126, 163822), (202, 102186), (252, 81911), (303, 68124), (404, 51093), (606, 34062), (707, 29196), (811, 25452), (909, 22708), (1212, 17031), (1414, 14598), (1622, 12726), (1818, 11354), (2121, 9732), (2433, 8484), (2828, 7299), (3244, 6363), (3636, 5677), (4242, 4866)]