18191265

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:158

約数の個数: 64

約数和(自身を含む): 33177600

約数和(自身を除く): 14986335

約数列:

[1, 3, 5, 15, 19, 29, 31, 57, 71, 87, 93, 95, 145, 155, 213, 285, 355, 435, 465, 551, 589, 899, 1065, 1349, 1653, 1767, 2059, 2201, 2697, 2755, 2945, 4047, 4495, 6177, 6603, 6745, 8265, 8835, 10295, 11005, 13485, 17081, 20235, 30885, 33015, 39121, 41819, 51243, 63829, 85405, 117363, 125457, 191487, 195605, 209095, 256215, 319145, 586815, 627285, 957435, 1212751, 3638253, 6063755, 18191265]

約数ペア:

[(1, 18191265), (3, 6063755), (5, 3638253), (15, 1212751), (19, 957435), (29, 627285), (31, 586815), (57, 319145), (71, 256215), (87, 209095), (93, 195605), (95, 191487), (145, 125457), (155, 117363), (213, 85405), (285, 63829), (355, 51243), (435, 41819), (465, 39121), (551, 33015), (589, 30885), (899, 20235), (1065, 17081), (1349, 13485), (1653, 11005), (1767, 10295), (2059, 8835), (2201, 8265), (2697, 6745), (2755, 6603), (2945, 6177), (4047, 4495)]