21859290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2729}}^1$

素因数の和:2831

約数の個数: 48

約数和(自身を含む): 57493800

約数和(自身を除く): 35634510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 2670, 2729, 4005, 5458, 8010, 8187, 13645, 16374, 24561, 27290, 40935, 49122, 81870, 122805, 242881, 245610, 485762, 728643, 1214405, 1457286, 2185929, 2428810, 3643215, 4371858, 7286430, 10929645, 21859290]

約数ペア:

[(1, 21859290), (2, 10929645), (3, 7286430), (5, 4371858), (6, 3643215), (9, 2428810), (10, 2185929), (15, 1457286), (18, 1214405), (30, 728643), (45, 485762), (89, 245610), (90, 242881), (178, 122805), (267, 81870), (445, 49122), (534, 40935), (801, 27290), (890, 24561), (1335, 16374), (1602, 13645), (2670, 8187), (2729, 8010), (4005, 5458)]