18970299537

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{166393}}^1$

素因数の和:166553

約数の個数: 32

約数和(自身を含む): 29711312640

約数和(自身を除く): 10741013103

約数列:

[1, 3, 7, 21, 61, 89, 183, 267, 427, 623, 1281, 1869, 5429, 16287, 38003, 114009, 166393, 499179, 1164751, 3494253, 10149973, 14808977, 30449919, 44426931, 71049811, 103662839, 213149433, 310988517, 903347597, 2710042791, 6323433179, 18970299537]

約数ペア:

[(1, 18970299537), (3, 6323433179), (7, 2710042791), (21, 903347597), (61, 310988517), (89, 213149433), (183, 103662839), (267, 71049811), (427, 44426931), (623, 30449919), (1281, 14808977), (1869, 10149973), (5429, 3494253), (16287, 1164751), (38003, 499179), (114009, 166393)]