21781896

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 58164480

約数和(自身を除く): 36382584

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 197, 204, 271, 394, 408, 542, 591, 788, 813, 1084, 1182, 1576, 1626, 2168, 2364, 3252, 3349, 4607, 4728, 6504, 6698, 9214, 10047, 13396, 13821, 18428, 20094, 26792, 27642, 36856, 40188, 53387, 55284, 80376, 106774, 110568, 160161, 213548, 320322, 427096, 640644, 907579, 1281288, 1815158, 2722737, 3630316, 5445474, 7260632, 10890948, 21781896]

約数ペア:

[(1, 21781896), (2, 10890948), (3, 7260632), (4, 5445474), (6, 3630316), (8, 2722737), (12, 1815158), (17, 1281288), (24, 907579), (34, 640644), (51, 427096), (68, 320322), (102, 213548), (136, 160161), (197, 110568), (204, 106774), (271, 80376), (394, 55284), (408, 53387), (542, 40188), (591, 36856), (788, 27642), (813, 26792), (1084, 20094), (1182, 18428), (1576, 13821), (1626, 13396), (2168, 10047), (2364, 9214), (3252, 6698), (3349, 6504), (4607, 4728)]