17971578

素因数分解:

$2^1\times 3^3\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 41771520

約数和(自身を除く): 23799942

約数列:

[1, 2, 3, 6, 9, 18, 27, 47, 54, 73, 94, 97, 141, 146, 194, 219, 282, 291, 423, 438, 582, 657, 846, 873, 1269, 1314, 1746, 1971, 2538, 2619, 3431, 3942, 4559, 5238, 6862, 7081, 9118, 10293, 13677, 14162, 20586, 21243, 27354, 30879, 41031, 42486, 61758, 63729, 82062, 92637, 123093, 127458, 185274, 191187, 246186, 332807, 382374, 665614, 998421, 1996842, 2995263, 5990526, 8985789, 17971578]

約数ペア:

[(1, 17971578), (2, 8985789), (3, 5990526), (6, 2995263), (9, 1996842), (18, 998421), (27, 665614), (47, 382374), (54, 332807), (73, 246186), (94, 191187), (97, 185274), (141, 127458), (146, 123093), (194, 92637), (219, 82062), (282, 63729), (291, 61758), (423, 42486), (438, 41031), (582, 30879), (657, 27354), (846, 21243), (873, 20586), (1269, 14162), (1314, 13677), (1746, 10293), (1971, 9118), (2538, 7081), (2619, 6862), (3431, 5238), (3942, 4559)]