20855556

素因数分解:

$2^2\times 3^4\times {\mathrm{59}}^1\times {\mathrm{1091}}^1$

素因数の和:1166

約数の個数: 60

約数和(自身を含む): 55495440

約数和(自身を除く): 34639884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 59, 81, 108, 118, 162, 177, 236, 324, 354, 531, 708, 1062, 1091, 1593, 2124, 2182, 3186, 3273, 4364, 4779, 6372, 6546, 9558, 9819, 13092, 19116, 19638, 29457, 39276, 58914, 64369, 88371, 117828, 128738, 176742, 193107, 257476, 353484, 386214, 579321, 772428, 1158642, 1737963, 2317284, 3475926, 5213889, 6951852, 10427778, 20855556]

約数ペア:

[(1, 20855556), (2, 10427778), (3, 6951852), (4, 5213889), (6, 3475926), (9, 2317284), (12, 1737963), (18, 1158642), (27, 772428), (36, 579321), (54, 386214), (59, 353484), (81, 257476), (108, 193107), (118, 176742), (162, 128738), (177, 117828), (236, 88371), (324, 64369), (354, 58914), (531, 39276), (708, 29457), (1062, 19638), (1091, 19116), (1593, 13092), (2124, 9819), (2182, 9558), (3186, 6546), (3273, 6372), (4364, 4779)]