20686722

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4139}}^1$

素因数の和:4175

約数の個数: 48

約数和(自身を含む): 50971680

約数和(自身を除く): 30284958

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 49, 51, 98, 102, 119, 147, 238, 294, 357, 714, 833, 1666, 2499, 4139, 4998, 8278, 12417, 24834, 28973, 57946, 70363, 86919, 140726, 173838, 202811, 211089, 405622, 422178, 492541, 608433, 985082, 1216866, 1477623, 2955246, 3447787, 6895574, 10343361, 20686722]

約数ペア:

[(1, 20686722), (2, 10343361), (3, 6895574), (6, 3447787), (7, 2955246), (14, 1477623), (17, 1216866), (21, 985082), (34, 608433), (42, 492541), (49, 422178), (51, 405622), (98, 211089), (102, 202811), (119, 173838), (147, 140726), (238, 86919), (294, 70363), (357, 57946), (714, 28973), (833, 24834), (1666, 12417), (2499, 8278), (4139, 4998)]