21541576

素因数分解:

$2^3\times 7^2\times {\mathrm{179}}^1\times {\mathrm{307}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 47401200

約数和(自身を除く): 25859624

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 179, 196, 307, 358, 392, 614, 716, 1228, 1253, 1432, 2149, 2456, 2506, 4298, 5012, 8596, 8771, 10024, 15043, 17192, 17542, 30086, 35084, 54953, 60172, 70168, 109906, 120344, 219812, 384671, 439624, 769342, 1538684, 2692697, 3077368, 5385394, 10770788, 21541576]

約数ペア:

[(1, 21541576), (2, 10770788), (4, 5385394), (7, 3077368), (8, 2692697), (14, 1538684), (28, 769342), (49, 439624), (56, 384671), (98, 219812), (179, 120344), (196, 109906), (307, 70168), (358, 60172), (392, 54953), (614, 35084), (716, 30086), (1228, 17542), (1253, 17192), (1432, 15043), (2149, 10024), (2456, 8771), (2506, 8596), (4298, 5012)]