31874739

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 47604480

約数和(自身を除く): 15729741

約数列:

[1, 3, 13, 39, 43, 83, 129, 229, 249, 559, 687, 1079, 1677, 2977, 3237, 3569, 8931, 9847, 10707, 19007, 29541, 46397, 57021, 128011, 139191, 247091, 384033, 741273, 817301, 2451903, 10624913, 31874739]

約数ペア:

[(1, 31874739), (3, 10624913), (13, 2451903), (39, 817301), (43, 741273), (83, 384033), (129, 247091), (229, 139191), (249, 128011), (559, 57021), (687, 46397), (1079, 29541), (1677, 19007), (2977, 10707), (3237, 9847), (3569, 8931)]