209741415

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{12959}}^1$

素因数の和:13063

約数の個数: 32

約数和(自身を含む): 365783040

約数和(自身を除く): 156041625

約数列:

[1, 3, 5, 13, 15, 39, 65, 83, 195, 249, 415, 1079, 1245, 3237, 5395, 12959, 16185, 38877, 64795, 168467, 194385, 505401, 842335, 1075597, 2527005, 3226791, 5377985, 13982761, 16133955, 41948283, 69913805, 209741415]

約数ペア:

[(1, 209741415), (3, 69913805), (5, 41948283), (13, 16133955), (15, 13982761), (39, 5377985), (65, 3226791), (83, 2527005), (195, 1075597), (249, 842335), (415, 505401), (1079, 194385), (1245, 168467), (3237, 64795), (5395, 38877), (12959, 16185)]