19993554

素因数分解:

$2^1\times 3^7\times 7^1\times {\mathrm{653}}^1$

素因数の和:683

約数の個数: 64

約数和(自身を含む): 51482880

約数和(自身を除く): 31489326

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 653, 729, 1134, 1306, 1458, 1701, 1959, 2187, 3402, 3918, 4374, 4571, 5103, 5877, 9142, 10206, 11754, 13713, 15309, 17631, 27426, 30618, 35262, 41139, 52893, 82278, 105786, 123417, 158679, 246834, 317358, 370251, 476037, 740502, 952074, 1110753, 1428111, 2221506, 2856222, 3332259, 6664518, 9996777, 19993554]

約数ペア:

[(1, 19993554), (2, 9996777), (3, 6664518), (6, 3332259), (7, 2856222), (9, 2221506), (14, 1428111), (18, 1110753), (21, 952074), (27, 740502), (42, 476037), (54, 370251), (63, 317358), (81, 246834), (126, 158679), (162, 123417), (189, 105786), (243, 82278), (378, 52893), (486, 41139), (567, 35262), (653, 30618), (729, 27426), (1134, 17631), (1306, 15309), (1458, 13713), (1701, 11754), (1959, 10206), (2187, 9142), (3402, 5877), (3918, 5103), (4374, 4571)]