221855404

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 414602496

約数和(自身を除く): 192747092

約数列:

[1, 2, 4, 37, 43, 71, 74, 86, 142, 148, 172, 284, 491, 982, 1591, 1964, 2627, 3053, 3182, 5254, 6106, 6364, 10508, 12212, 18167, 21113, 34861, 36334, 42226, 69722, 72668, 84452, 112961, 139444, 225922, 451844, 781181, 1289857, 1499023, 1562362, 2579714, 2998046, 3124724, 5159428, 5996092, 55463851, 110927702, 221855404]

約数ペア:

[(1, 221855404), (2, 110927702), (4, 55463851), (37, 5996092), (43, 5159428), (71, 3124724), (74, 2998046), (86, 2579714), (142, 1562362), (148, 1499023), (172, 1289857), (284, 781181), (491, 451844), (982, 225922), (1591, 139444), (1964, 112961), (2627, 84452), (3053, 72668), (3182, 69722), (5254, 42226), (6106, 36334), (6364, 34861), (10508, 21113), (12212, 18167)]