17996868

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 47469240

約数和(自身を除く): 29472372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 89, 123, 137, 164, 178, 246, 267, 274, 356, 369, 411, 492, 534, 548, 738, 801, 822, 1068, 1233, 1476, 1602, 1644, 2466, 3204, 3649, 4932, 5617, 7298, 10947, 11234, 12193, 14596, 16851, 21894, 22468, 24386, 32841, 33702, 36579, 43788, 48772, 50553, 65682, 67404, 73158, 101106, 109737, 131364, 146316, 202212, 219474, 438948, 499913, 999826, 1499739, 1999652, 2999478, 4499217, 5998956, 8998434, 17996868]

約数ペア:

[(1, 17996868), (2, 8998434), (3, 5998956), (4, 4499217), (6, 2999478), (9, 1999652), (12, 1499739), (18, 999826), (36, 499913), (41, 438948), (82, 219474), (89, 202212), (123, 146316), (137, 131364), (164, 109737), (178, 101106), (246, 73158), (267, 67404), (274, 65682), (356, 50553), (369, 48772), (411, 43788), (492, 36579), (534, 33702), (548, 32841), (738, 24386), (801, 22468), (822, 21894), (1068, 16851), (1233, 14596), (1476, 12193), (1602, 11234), (1644, 10947), (2466, 7298), (3204, 5617), (3649, 4932)]