19721030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 41713056

約数和(自身を除く): 21992026

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 167, 241, 245, 334, 482, 490, 835, 1169, 1205, 1670, 1687, 2338, 2410, 3374, 5845, 8183, 8435, 11690, 11809, 16366, 16870, 23618, 40247, 40915, 59045, 80494, 81830, 118090, 201235, 281729, 402470, 563458, 1408645, 1972103, 2817290, 3944206, 9860515, 19721030]

約数ペア:

[(1, 19721030), (2, 9860515), (5, 3944206), (7, 2817290), (10, 1972103), (14, 1408645), (35, 563458), (49, 402470), (70, 281729), (98, 201235), (167, 118090), (241, 81830), (245, 80494), (334, 59045), (482, 40915), (490, 40247), (835, 23618), (1169, 16870), (1205, 16366), (1670, 11809), (1687, 11690), (2338, 8435), (2410, 8183), (3374, 5845)]