20405484

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{227}}^2$

素因数の和:475

約数の個数: 54

約数和(自身を含む): 56518644

約数和(自身を除く): 36113160

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 227, 396, 454, 681, 908, 1362, 2043, 2497, 2724, 4086, 4994, 7491, 8172, 9988, 14982, 22473, 29964, 44946, 51529, 89892, 103058, 154587, 206116, 309174, 463761, 566819, 618348, 927522, 1133638, 1700457, 1855044, 2267276, 3400914, 5101371, 6801828, 10202742, 20405484]

約数ペア:

[(1, 20405484), (2, 10202742), (3, 6801828), (4, 5101371), (6, 3400914), (9, 2267276), (11, 1855044), (12, 1700457), (18, 1133638), (22, 927522), (33, 618348), (36, 566819), (44, 463761), (66, 309174), (99, 206116), (132, 154587), (198, 103058), (227, 89892), (396, 51529), (454, 44946), (681, 29964), (908, 22473), (1362, 14982), (2043, 9988), (2497, 8172), (2724, 7491), (4086, 4994)]