213499965

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{6143}}^1$

素因数の和:6489

約数の個数: 32

約数和(自身を含む): 391643136

約数和(自身を除く): 178143171

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 331, 993, 1655, 2317, 4965, 6143, 6951, 11585, 18429, 30715, 34755, 43001, 92145, 129003, 215005, 645015, 2033333, 6099999, 10166665, 14233331, 30499995, 42699993, 71166655, 213499965]

約数ペア:

[(1, 213499965), (3, 71166655), (5, 42699993), (7, 30499995), (15, 14233331), (21, 10166665), (35, 6099999), (105, 2033333), (331, 645015), (993, 215005), (1655, 129003), (2317, 92145), (4965, 43001), (6143, 34755), (6951, 30715), (11585, 18429)]