19521453

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^2\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 36

約数和(自身を含む): 31427520

約数和(自身を除く): 11906067

約数列:

[1, 3, 7, 21, 41, 49, 79, 123, 147, 237, 287, 553, 861, 1659, 1681, 2009, 3239, 3871, 5043, 6027, 9717, 11613, 11767, 22673, 35301, 68019, 82369, 132799, 158711, 247107, 398397, 476133, 929593, 2788779, 6507151, 19521453]

約数ペア:

[(1, 19521453), (3, 6507151), (7, 2788779), (21, 929593), (41, 476133), (49, 398397), (79, 247107), (123, 158711), (147, 132799), (237, 82369), (287, 68019), (553, 35301), (861, 22673), (1659, 11767), (1681, 11613), (2009, 9717), (3239, 6027), (3871, 5043)]