18853965

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3581}}^1$

素因数の和:3611

約数の個数: 40

約数和(自身を含む): 36407448

約数和(自身を除く): 17553483

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 3581, 5265, 10743, 17905, 32229, 46553, 53715, 96687, 139659, 161145, 232765, 290061, 418977, 483435, 698295, 1256931, 1450305, 2094885, 3770793, 6284655, 18853965]

約数ペア:

[(1, 18853965), (3, 6284655), (5, 3770793), (9, 2094885), (13, 1450305), (15, 1256931), (27, 698295), (39, 483435), (45, 418977), (65, 290061), (81, 232765), (117, 161145), (135, 139659), (195, 96687), (351, 53715), (405, 46553), (585, 32229), (1053, 17905), (1755, 10743), (3581, 5265)]