19804484

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 21321916

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 101, 149, 188, 202, 298, 329, 404, 596, 658, 707, 1043, 1316, 1414, 2086, 2828, 4172, 4747, 7003, 9494, 14006, 15049, 18988, 28012, 30098, 33229, 49021, 60196, 66458, 98042, 105343, 132916, 196084, 210686, 421372, 707303, 1414606, 2829212, 4951121, 9902242, 19804484]

約数ペア:

[(1, 19804484), (2, 9902242), (4, 4951121), (7, 2829212), (14, 1414606), (28, 707303), (47, 421372), (94, 210686), (101, 196084), (149, 132916), (188, 105343), (202, 98042), (298, 66458), (329, 60196), (404, 49021), (596, 33229), (658, 30098), (707, 28012), (1043, 18988), (1316, 15049), (1414, 14006), (2086, 9494), (2828, 7003), (4172, 4747)]