21697728

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8693}}^1$

素因数の和:8721

約数の個数: 56

約数和(自身を含む): 61831728

約数和(自身を除く): 40134000

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 156, 192, 208, 312, 416, 624, 832, 1248, 2496, 8693, 17386, 26079, 34772, 52158, 69544, 104316, 113009, 139088, 208632, 226018, 278176, 339027, 417264, 452036, 556352, 678054, 834528, 904072, 1356108, 1669056, 1808144, 2712216, 3616288, 5424432, 7232576, 10848864, 21697728]

約数ペア:

[(1, 21697728), (2, 10848864), (3, 7232576), (4, 5424432), (6, 3616288), (8, 2712216), (12, 1808144), (13, 1669056), (16, 1356108), (24, 904072), (26, 834528), (32, 678054), (39, 556352), (48, 452036), (52, 417264), (64, 339027), (78, 278176), (96, 226018), (104, 208632), (156, 139088), (192, 113009), (208, 104316), (312, 69544), (416, 52158), (624, 34772), (832, 26079), (1248, 17386), (2496, 8693)]