21220992

素因数分解:

$2^7\times 3^2\times {\mathrm{13}}^2\times {\mathrm{109}}^1$

素因数の和:155

約数の個数: 144

約数和(自身を含む): 66730950

約数和(自身を除く): 45509958

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 109, 117, 128, 144, 156, 169, 192, 208, 218, 234, 288, 312, 327, 338, 384, 416, 436, 468, 507, 576, 624, 654, 676, 832, 872, 936, 981, 1014, 1152, 1248, 1308, 1352, 1417, 1521, 1664, 1744, 1872, 1962, 2028, 2496, 2616, 2704, 2834, 3042, 3488, 3744, 3924, 4056, 4251, 4992, 5232, 5408, 5668, 6084, 6976, 7488, 7848, 8112, 8502, 10464, 10816, 11336, 12168, 12753, 13952, 14976, 15696, 16224, 17004, 18421, 20928, 21632, 22672, 24336, 25506, 31392, 32448, 34008, 36842, 41856, 45344, 48672, 51012, 55263, 62784, 64896, 68016, 73684, 90688, 97344, 102024, 110526, 125568, 136032, 147368, 165789, 181376, 194688, 204048, 221052, 272064, 294736, 331578, 408096, 442104, 544128, 589472, 663156, 816192, 884208, 1178944, 1326312, 1632384, 1768416, 2357888, 2652624, 3536832, 5305248, 7073664, 10610496, 21220992]

約数ペア:

[(1, 21220992), (2, 10610496), (3, 7073664), (4, 5305248), (6, 3536832), (8, 2652624), (9, 2357888), (12, 1768416), (13, 1632384), (16, 1326312), (18, 1178944), (24, 884208), (26, 816192), (32, 663156), (36, 589472), (39, 544128), (48, 442104), (52, 408096), (64, 331578), (72, 294736), (78, 272064), (96, 221052), (104, 204048), (109, 194688), (117, 181376), (128, 165789), (144, 147368), (156, 136032), (169, 125568), (192, 110526), (208, 102024), (218, 97344), (234, 90688), (288, 73684), (312, 68016), (327, 64896), (338, 62784), (384, 55263), (416, 51012), (436, 48672), (468, 45344), (507, 41856), (576, 36842), (624, 34008), (654, 32448), (676, 31392), (832, 25506), (872, 24336), (936, 22672), (981, 21632), (1014, 20928), (1152, 18421), (1248, 17004), (1308, 16224), (1352, 15696), (1417, 14976), (1521, 13952), (1664, 12753), (1744, 12168), (1872, 11336), (1962, 10816), (2028, 10464), (2496, 8502), (2616, 8112), (2704, 7848), (2834, 7488), (3042, 6976), (3488, 6084), (3744, 5668), (3924, 5408), (4056, 5232), (4251, 4992)]