21913136

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^2\times {\mathrm{677}}^1$

素因数の和:726

約数の個数: 60

約数和(自身を含む): 51620208

約数和(自身を除く): 29707072

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 289, 476, 578, 677, 952, 1156, 1354, 1904, 2023, 2312, 2708, 4046, 4624, 4739, 5416, 8092, 9478, 10832, 11509, 16184, 18956, 23018, 32368, 37912, 46036, 75824, 80563, 92072, 161126, 184144, 195653, 322252, 391306, 644504, 782612, 1289008, 1369571, 1565224, 2739142, 3130448, 5478284, 10956568, 21913136]

約数ペア:

[(1, 21913136), (2, 10956568), (4, 5478284), (7, 3130448), (8, 2739142), (14, 1565224), (16, 1369571), (17, 1289008), (28, 782612), (34, 644504), (56, 391306), (68, 322252), (112, 195653), (119, 184144), (136, 161126), (238, 92072), (272, 80563), (289, 75824), (476, 46036), (578, 37912), (677, 32368), (952, 23018), (1156, 18956), (1354, 16184), (1904, 11509), (2023, 10832), (2312, 9478), (2708, 8092), (4046, 5416), (4624, 4739)]