20816964

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{11801}}^1$

素因数の和:11825

約数の個数: 54

約数和(自身を含む): 61216974

約数和(自身を除く): 40400010

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 11801, 23602, 35403, 47204, 70806, 82607, 106209, 141612, 165214, 212418, 247821, 330428, 424836, 495642, 578249, 743463, 991284, 1156498, 1486926, 1734747, 2312996, 2973852, 3469494, 5204241, 6938988, 10408482, 20816964]

約数ペア:

[(1, 20816964), (2, 10408482), (3, 6938988), (4, 5204241), (6, 3469494), (7, 2973852), (9, 2312996), (12, 1734747), (14, 1486926), (18, 1156498), (21, 991284), (28, 743463), (36, 578249), (42, 495642), (49, 424836), (63, 330428), (84, 247821), (98, 212418), (126, 165214), (147, 141612), (196, 106209), (252, 82607), (294, 70806), (441, 47204), (588, 35403), (882, 23602), (1764, 11801)]