20349665

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 9510175

約数列:

[1, 5, 7, 19, 35, 71, 95, 133, 355, 431, 497, 665, 1349, 2155, 2485, 3017, 6745, 8189, 9443, 15085, 30601, 40945, 47215, 57323, 153005, 214207, 286615, 581419, 1071035, 2907095, 4069933, 20349665]

約数ペア:

[(1, 20349665), (5, 4069933), (7, 2907095), (19, 1071035), (35, 581419), (71, 286615), (95, 214207), (133, 153005), (355, 57323), (431, 47215), (497, 40945), (665, 30601), (1349, 15085), (2155, 9443), (2485, 8189), (3017, 6745)]