20921644

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 40007520

約数和(自身を除く): 19085876

約数列:

[1, 2, 4, 29, 41, 53, 58, 82, 83, 106, 116, 164, 166, 212, 332, 1189, 1537, 2173, 2378, 2407, 3074, 3403, 4346, 4399, 4756, 4814, 6148, 6806, 8692, 8798, 9628, 13612, 17596, 63017, 98687, 126034, 127571, 180359, 197374, 252068, 255142, 360718, 394748, 510284, 721436, 5230411, 10460822, 20921644]

約数ペア:

[(1, 20921644), (2, 10460822), (4, 5230411), (29, 721436), (41, 510284), (53, 394748), (58, 360718), (82, 255142), (83, 252068), (106, 197374), (116, 180359), (164, 127571), (166, 126034), (212, 98687), (332, 63017), (1189, 17596), (1537, 13612), (2173, 9628), (2378, 8798), (2407, 8692), (3074, 6806), (3403, 6148), (4346, 4814), (4399, 4756)]