13220865

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^2$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 28167360

約数和(自身を除く): 14946495

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 47, 57, 63, 95, 105, 133, 141, 171, 235, 285, 315, 329, 399, 423, 665, 705, 855, 893, 987, 1197, 1645, 1995, 2115, 2209, 2679, 2961, 4465, 4935, 5985, 6251, 6627, 8037, 11045, 13395, 14805, 15463, 18753, 19881, 31255, 33135, 40185, 41971, 46389, 56259, 77315, 93765, 99405, 125913, 139167, 209855, 231945, 281295, 293797, 377739, 629565, 695835, 881391, 1468985, 1888695, 2644173, 4406955, 13220865]

約数ペア:

[(1, 13220865), (3, 4406955), (5, 2644173), (7, 1888695), (9, 1468985), (15, 881391), (19, 695835), (21, 629565), (35, 377739), (45, 293797), (47, 281295), (57, 231945), (63, 209855), (95, 139167), (105, 125913), (133, 99405), (141, 93765), (171, 77315), (235, 56259), (285, 46389), (315, 41971), (329, 40185), (399, 33135), (423, 31255), (665, 19881), (705, 18753), (855, 15463), (893, 14805), (987, 13395), (1197, 11045), (1645, 8037), (1995, 6627), (2115, 6251), (2209, 5985), (2679, 4935), (2961, 4465)]