21409206

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{347}}^1$

素因数の和:485

約数の個数: 64

約数和(自身を含む): 53319168

約数和(自身を除く): 31909962

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 113, 182, 226, 273, 339, 347, 546, 678, 694, 791, 1041, 1469, 1582, 2082, 2373, 2429, 2938, 4407, 4511, 4746, 4858, 7287, 8814, 9022, 10283, 13533, 14574, 20566, 27066, 30849, 31577, 39211, 61698, 63154, 78422, 94731, 117633, 189462, 235266, 274477, 509743, 548954, 823431, 1019486, 1529229, 1646862, 3058458, 3568201, 7136402, 10704603, 21409206]

約数ペア:

[(1, 21409206), (2, 10704603), (3, 7136402), (6, 3568201), (7, 3058458), (13, 1646862), (14, 1529229), (21, 1019486), (26, 823431), (39, 548954), (42, 509743), (78, 274477), (91, 235266), (113, 189462), (182, 117633), (226, 94731), (273, 78422), (339, 63154), (347, 61698), (546, 39211), (678, 31577), (694, 30849), (791, 27066), (1041, 20566), (1469, 14574), (1582, 13533), (2082, 10283), (2373, 9022), (2429, 8814), (2938, 7287), (4407, 4858), (4511, 4746)]