20718552

素因数分解:

$2^3\times 3^1\times {\mathrm{457}}^1\times {\mathrm{1889}}^1$

素因数の和:2355

約数の個数: 32

約数和(自身を含む): 51937200

約数和(自身を除く): 31218648

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 457, 914, 1371, 1828, 1889, 2742, 3656, 3778, 5484, 5667, 7556, 10968, 11334, 15112, 22668, 45336, 863273, 1726546, 2589819, 3453092, 5179638, 6906184, 10359276, 20718552]

約数ペア:

[(1, 20718552), (2, 10359276), (3, 6906184), (4, 5179638), (6, 3453092), (8, 2589819), (12, 1726546), (24, 863273), (457, 45336), (914, 22668), (1371, 15112), (1828, 11334), (1889, 10968), (2742, 7556), (3656, 5667), (3778, 5484)]