31991406

素因数分解:

$2^1\times 3^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 65318400

約数和(自身を除く): 33326994

約数列:

[1, 2, 3, 6, 89, 139, 178, 267, 278, 417, 431, 534, 834, 862, 1293, 2586, 12371, 24742, 37113, 38359, 59909, 74226, 76718, 115077, 119818, 179727, 230154, 359454, 5331901, 10663802, 15995703, 31991406]

約数ペア:

[(1, 31991406), (2, 15995703), (3, 10663802), (6, 5331901), (89, 359454), (139, 230154), (178, 179727), (267, 119818), (278, 115077), (417, 76718), (431, 74226), (534, 59909), (834, 38359), (862, 37113), (1293, 24742), (2586, 12371)]