215538687

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2957}}^1$

素因数の和:3072

約数の個数: 48

約数和(自身を含む): 387616320

約数和(自身を除く): 172077633

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 89, 91, 117, 267, 273, 623, 801, 819, 1157, 1869, 2957, 3471, 5607, 8099, 8871, 10413, 20699, 24297, 26613, 38441, 62097, 72891, 115323, 186291, 263173, 269087, 345969, 789519, 807261, 1842211, 2368557, 2421783, 3421249, 5526633, 10263747, 16579899, 23948743, 30791241, 71846229, 215538687]

約数ペア:

[(1, 215538687), (3, 71846229), (7, 30791241), (9, 23948743), (13, 16579899), (21, 10263747), (39, 5526633), (63, 3421249), (89, 2421783), (91, 2368557), (117, 1842211), (267, 807261), (273, 789519), (623, 345969), (801, 269087), (819, 263173), (1157, 186291), (1869, 115323), (2957, 72891), (3471, 62097), (5607, 38441), (8099, 26613), (8871, 24297), (10413, 20699)]