19845864

素因数分解:

$2^3\times 3^3\times {\mathrm{139}}^1\times {\mathrm{661}}^1$

素因数の和:815

約数の個数: 64

約数和(自身を含む): 55608000

約数和(自身を除く): 35762136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 139, 216, 278, 417, 556, 661, 834, 1112, 1251, 1322, 1668, 1983, 2502, 2644, 3336, 3753, 3966, 5004, 5288, 5949, 7506, 7932, 10008, 11898, 15012, 15864, 17847, 23796, 30024, 35694, 47592, 71388, 91879, 142776, 183758, 275637, 367516, 551274, 735032, 826911, 1102548, 1653822, 2205096, 2480733, 3307644, 4961466, 6615288, 9922932, 19845864]

約数ペア:

[(1, 19845864), (2, 9922932), (3, 6615288), (4, 4961466), (6, 3307644), (8, 2480733), (9, 2205096), (12, 1653822), (18, 1102548), (24, 826911), (27, 735032), (36, 551274), (54, 367516), (72, 275637), (108, 183758), (139, 142776), (216, 91879), (278, 71388), (417, 47592), (556, 35694), (661, 30024), (834, 23796), (1112, 17847), (1251, 15864), (1322, 15012), (1668, 11898), (1983, 10008), (2502, 7932), (2644, 7506), (3336, 5949), (3753, 5288), (3966, 5004)]