211343405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 335301120

約数和(自身を除く): 123957715

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 89, 91, 119, 221, 307, 445, 455, 595, 623, 1105, 1157, 1513, 1535, 1547, 2149, 3115, 3991, 5219, 5785, 7565, 7735, 8099, 10591, 10745, 19669, 19955, 26095, 27323, 27937, 36533, 40495, 52955, 67847, 98345, 136615, 137683, 139685, 182665, 191261, 339235, 355199, 464491, 474929, 688415, 956305, 1775995, 2322455, 2374645, 2486393, 3251437, 6038383, 12431965, 16257185, 30191915, 42268681, 211343405]

約数ペア:

[(1, 211343405), (5, 42268681), (7, 30191915), (13, 16257185), (17, 12431965), (35, 6038383), (65, 3251437), (85, 2486393), (89, 2374645), (91, 2322455), (119, 1775995), (221, 956305), (307, 688415), (445, 474929), (455, 464491), (595, 355199), (623, 339235), (1105, 191261), (1157, 182665), (1513, 139685), (1535, 137683), (1547, 136615), (2149, 98345), (3115, 67847), (3991, 52955), (5219, 40495), (5785, 36533), (7565, 27937), (7735, 27323), (8099, 26095), (10591, 19955), (10745, 19669)]