19423894

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 48

約数和(自身を含む): 36566640

約数和(自身を除く): 17142746

約数列:

[1, 2, 7, 14, 17, 34, 49, 89, 98, 119, 131, 178, 238, 262, 623, 833, 917, 1246, 1513, 1666, 1834, 2227, 3026, 4361, 4454, 6419, 8722, 10591, 11659, 12838, 15589, 21182, 23318, 31178, 74137, 81613, 109123, 148274, 163226, 198203, 218246, 396406, 571291, 1142582, 1387421, 2774842, 9711947, 19423894]

約数ペア:

[(1, 19423894), (2, 9711947), (7, 2774842), (14, 1387421), (17, 1142582), (34, 571291), (49, 396406), (89, 218246), (98, 198203), (119, 163226), (131, 148274), (178, 109123), (238, 81613), (262, 74137), (623, 31178), (833, 23318), (917, 21182), (1246, 15589), (1513, 12838), (1666, 11659), (1834, 10591), (2227, 8722), (3026, 6419), (4361, 4454)]