21503376

素因数分解:

$2^4\times 3^2\times {\mathrm{59}}^1\times {\mathrm{2531}}^1$

素因数の和:2604

約数の個数: 60

約数和(自身を含む): 61223760

約数和(自身を除く): 39720384

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 59, 72, 118, 144, 177, 236, 354, 472, 531, 708, 944, 1062, 1416, 2124, 2531, 2832, 4248, 5062, 7593, 8496, 10124, 15186, 20248, 22779, 30372, 40496, 45558, 60744, 91116, 121488, 149329, 182232, 298658, 364464, 447987, 597316, 895974, 1194632, 1343961, 1791948, 2389264, 2687922, 3583896, 5375844, 7167792, 10751688, 21503376]

約数ペア:

[(1, 21503376), (2, 10751688), (3, 7167792), (4, 5375844), (6, 3583896), (8, 2687922), (9, 2389264), (12, 1791948), (16, 1343961), (18, 1194632), (24, 895974), (36, 597316), (48, 447987), (59, 364464), (72, 298658), (118, 182232), (144, 149329), (177, 121488), (236, 91116), (354, 60744), (472, 45558), (531, 40496), (708, 30372), (944, 22779), (1062, 20248), (1416, 15186), (2124, 10124), (2531, 8496), (2832, 7593), (4248, 5062)]