31890915

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{1607}}^1$

素因数の和:1638

約数の個数: 60

約数和(自身を含む): 66542256

約数和(自身を除く): 34651341

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 245, 315, 405, 441, 567, 735, 945, 1323, 1607, 2205, 2835, 3969, 4821, 6615, 8035, 11249, 14463, 19845, 24105, 33747, 43389, 56245, 72315, 78743, 101241, 130167, 168735, 216945, 236229, 303723, 393715, 506205, 650835, 708687, 911169, 1181145, 1518615, 2126061, 3543435, 4555845, 6378183, 10630305, 31890915]

約数ペア:

[(1, 31890915), (3, 10630305), (5, 6378183), (7, 4555845), (9, 3543435), (15, 2126061), (21, 1518615), (27, 1181145), (35, 911169), (45, 708687), (49, 650835), (63, 506205), (81, 393715), (105, 303723), (135, 236229), (147, 216945), (189, 168735), (245, 130167), (315, 101241), (405, 78743), (441, 72315), (567, 56245), (735, 43389), (945, 33747), (1323, 24105), (1607, 19845), (2205, 14463), (2835, 11249), (3969, 8035), (4821, 6615)]