21296688

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{263}}^1$

素因数の和:522

約数の個数: 80

約数和(自身を含む): 63376896

約数和(自身を除く): 42080208

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 241, 263, 336, 482, 526, 723, 789, 964, 1052, 1446, 1578, 1687, 1841, 1928, 2104, 2892, 3156, 3374, 3682, 3856, 4208, 5061, 5523, 5784, 6312, 6748, 7364, 10122, 11046, 11568, 12624, 13496, 14728, 20244, 22092, 26992, 29456, 40488, 44184, 63383, 80976, 88368, 126766, 190149, 253532, 380298, 443681, 507064, 760596, 887362, 1014128, 1331043, 1521192, 1774724, 2662086, 3042384, 3549448, 5324172, 7098896, 10648344, 21296688]

約数ペア:

[(1, 21296688), (2, 10648344), (3, 7098896), (4, 5324172), (6, 3549448), (7, 3042384), (8, 2662086), (12, 1774724), (14, 1521192), (16, 1331043), (21, 1014128), (24, 887362), (28, 760596), (42, 507064), (48, 443681), (56, 380298), (84, 253532), (112, 190149), (168, 126766), (241, 88368), (263, 80976), (336, 63383), (482, 44184), (526, 40488), (723, 29456), (789, 26992), (964, 22092), (1052, 20244), (1446, 14728), (1578, 13496), (1687, 12624), (1841, 11568), (1928, 11046), (2104, 10122), (2892, 7364), (3156, 6748), (3374, 6312), (3682, 5784), (3856, 5523), (4208, 5061)]