21450704

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{397}}^1$

素因数の和:723

約数の個数: 40

約数和(自身を含む): 45601248

約数和(自身を除く): 24150544

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 307, 397, 614, 794, 1228, 1588, 2456, 3176, 3377, 4367, 4912, 6352, 6754, 8734, 13508, 17468, 27016, 34936, 54032, 69872, 121879, 243758, 487516, 975032, 1340669, 1950064, 2681338, 5362676, 10725352, 21450704]

約数ペア:

[(1, 21450704), (2, 10725352), (4, 5362676), (8, 2681338), (11, 1950064), (16, 1340669), (22, 975032), (44, 487516), (88, 243758), (176, 121879), (307, 69872), (397, 54032), (614, 34936), (794, 27016), (1228, 17468), (1588, 13508), (2456, 8734), (3176, 6754), (3377, 6352), (4367, 4912)]