21084894

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 49193280

約数和(自身を除く): 28108386

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 61, 74, 111, 122, 173, 183, 222, 333, 346, 366, 519, 549, 666, 999, 1038, 1098, 1557, 1647, 1998, 2257, 3114, 3294, 4514, 4671, 6401, 6771, 9342, 10553, 12802, 13542, 19203, 20313, 21106, 31659, 38406, 40626, 57609, 60939, 63318, 94977, 115218, 121878, 172827, 189954, 284931, 345654, 390461, 569862, 780922, 1171383, 2342766, 3514149, 7028298, 10542447, 21084894]

約数ペア:

[(1, 21084894), (2, 10542447), (3, 7028298), (6, 3514149), (9, 2342766), (18, 1171383), (27, 780922), (37, 569862), (54, 390461), (61, 345654), (74, 284931), (111, 189954), (122, 172827), (173, 121878), (183, 115218), (222, 94977), (333, 63318), (346, 60939), (366, 57609), (519, 40626), (549, 38406), (666, 31659), (999, 21106), (1038, 20313), (1098, 19203), (1557, 13542), (1647, 12802), (1998, 10553), (2257, 9342), (3114, 6771), (3294, 6401), (4514, 4671)]