17651988

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 47567520

約数和(自身を除く): 29915532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 131, 171, 197, 228, 262, 342, 393, 394, 524, 591, 684, 786, 788, 1179, 1182, 1572, 1773, 2358, 2364, 2489, 3546, 3743, 4716, 4978, 7092, 7467, 7486, 9956, 11229, 14934, 14972, 22401, 22458, 25807, 29868, 33687, 44802, 44916, 51614, 67374, 77421, 89604, 103228, 134748, 154842, 232263, 309684, 464526, 490333, 929052, 980666, 1470999, 1961332, 2941998, 4412997, 5883996, 8825994, 17651988]

約数ペア:

[(1, 17651988), (2, 8825994), (3, 5883996), (4, 4412997), (6, 2941998), (9, 1961332), (12, 1470999), (18, 980666), (19, 929052), (36, 490333), (38, 464526), (57, 309684), (76, 232263), (114, 154842), (131, 134748), (171, 103228), (197, 89604), (228, 77421), (262, 67374), (342, 51614), (393, 44916), (394, 44802), (524, 33687), (591, 29868), (684, 25807), (786, 22458), (788, 22401), (1179, 14972), (1182, 14934), (1572, 11229), (1773, 9956), (2358, 7486), (2364, 7467), (2489, 7092), (3546, 4978), (3743, 4716)]