20921436

素因数分解:

$2^2\times 3^3\times {\mathrm{307}}^1\times {\mathrm{631}}^1$

素因数の和:951

約数の個数: 48

約数和(自身を含む): 54503680

約数和(自身を除く): 33582244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 307, 614, 631, 921, 1228, 1262, 1842, 1893, 2524, 2763, 3684, 3786, 5526, 5679, 7572, 8289, 11052, 11358, 16578, 17037, 22716, 33156, 34074, 68148, 193717, 387434, 581151, 774868, 1162302, 1743453, 2324604, 3486906, 5230359, 6973812, 10460718, 20921436]

約数ペア:

[(1, 20921436), (2, 10460718), (3, 6973812), (4, 5230359), (6, 3486906), (9, 2324604), (12, 1743453), (18, 1162302), (27, 774868), (36, 581151), (54, 387434), (108, 193717), (307, 68148), (614, 34074), (631, 33156), (921, 22716), (1228, 17037), (1262, 16578), (1842, 11358), (1893, 11052), (2524, 8289), (2763, 7572), (3684, 5679), (3786, 5526)]