21245312

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:295

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 25756288

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 79, 88, 128, 158, 176, 191, 316, 352, 382, 632, 704, 764, 869, 1264, 1408, 1528, 1738, 2101, 2528, 3056, 3476, 4202, 5056, 6112, 6952, 8404, 10112, 12224, 13904, 15089, 16808, 24448, 27808, 30178, 33616, 55616, 60356, 67232, 111232, 120712, 134464, 165979, 241424, 268928, 331958, 482848, 663916, 965696, 1327832, 1931392, 2655664, 5311328, 10622656, 21245312]

約数ペア:

[(1, 21245312), (2, 10622656), (4, 5311328), (8, 2655664), (11, 1931392), (16, 1327832), (22, 965696), (32, 663916), (44, 482848), (64, 331958), (79, 268928), (88, 241424), (128, 165979), (158, 134464), (176, 120712), (191, 111232), (316, 67232), (352, 60356), (382, 55616), (632, 33616), (704, 30178), (764, 27808), (869, 24448), (1264, 16808), (1408, 15089), (1528, 13904), (1738, 12224), (2101, 10112), (2528, 8404), (3056, 6952), (3476, 6112), (4202, 5056)]