19641944

素因数分解:

$2^3\times 7^2\times {\mathrm{89}}^1\times {\mathrm{563}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 43399800

約数和(自身を除く): 23757856

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 89, 98, 178, 196, 356, 392, 563, 623, 712, 1126, 1246, 2252, 2492, 3941, 4361, 4504, 4984, 7882, 8722, 15764, 17444, 27587, 31528, 34888, 50107, 55174, 100214, 110348, 200428, 220696, 350749, 400856, 701498, 1402996, 2455243, 2805992, 4910486, 9820972, 19641944]

約数ペア:

[(1, 19641944), (2, 9820972), (4, 4910486), (7, 2805992), (8, 2455243), (14, 1402996), (28, 701498), (49, 400856), (56, 350749), (89, 220696), (98, 200428), (178, 110348), (196, 100214), (356, 55174), (392, 50107), (563, 34888), (623, 31528), (712, 27587), (1126, 17444), (1246, 15764), (2252, 8722), (2492, 7882), (3941, 4984), (4361, 4504)]