221801384

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{641}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 491823360

約数和(自身を除く): 270021976

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 167, 259, 296, 334, 518, 641, 668, 1036, 1169, 1282, 1336, 2072, 2338, 2564, 4487, 4676, 5128, 6179, 8974, 9352, 12358, 17948, 23717, 24716, 35896, 43253, 47434, 49432, 86506, 94868, 107047, 166019, 173012, 189736, 214094, 332038, 346024, 428188, 664076, 749329, 856376, 1328152, 1498658, 2997316, 3960739, 5994632, 7921478, 15842956, 27725173, 31685912, 55450346, 110900692, 221801384]

約数ペア:

[(1, 221801384), (2, 110900692), (4, 55450346), (7, 31685912), (8, 27725173), (14, 15842956), (28, 7921478), (37, 5994632), (56, 3960739), (74, 2997316), (148, 1498658), (167, 1328152), (259, 856376), (296, 749329), (334, 664076), (518, 428188), (641, 346024), (668, 332038), (1036, 214094), (1169, 189736), (1282, 173012), (1336, 166019), (2072, 107047), (2338, 94868), (2564, 86506), (4487, 49432), (4676, 47434), (5128, 43253), (6179, 35896), (8974, 24716), (9352, 23717), (12358, 17948)]