20640498

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{547}}^1$

素因数の和:902

約数の個数: 32

約数和(自身を含む): 43664640

約数和(自身を除く): 23024142

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 331, 547, 662, 993, 1094, 1641, 1986, 3282, 6289, 10393, 12578, 18867, 20786, 31179, 37734, 62358, 181057, 362114, 543171, 1086342, 3440083, 6880166, 10320249, 20640498]

約数ペア:

[(1, 20640498), (2, 10320249), (3, 6880166), (6, 3440083), (19, 1086342), (38, 543171), (57, 362114), (114, 181057), (331, 62358), (547, 37734), (662, 31179), (993, 20786), (1094, 18867), (1641, 12578), (1986, 10393), (3282, 6289)]