18886609

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 32

約数和(自身を含む): 24192000

約数和(自身を除く): 5305391

約数列:

[1, 7, 17, 41, 49, 79, 119, 287, 343, 553, 697, 833, 1343, 2009, 3239, 3871, 4879, 5831, 9401, 14063, 22673, 27097, 34153, 55063, 65807, 158711, 239071, 385441, 460649, 1110977, 2698087, 18886609]

約数ペア:

[(1, 18886609), (7, 2698087), (17, 1110977), (41, 460649), (49, 385441), (79, 239071), (119, 158711), (287, 65807), (343, 55063), (553, 34153), (697, 27097), (833, 22673), (1343, 14063), (2009, 9401), (3239, 5831), (3871, 4879)]