211315845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{26431}}^1$

素因数の和:26493

約数の個数: 32

約数和(自身を含む): 373008384

約数和(自身を除く): 161692539

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 123, 195, 205, 533, 615, 1599, 2665, 7995, 26431, 79293, 132155, 343603, 396465, 1030809, 1083671, 1718015, 3251013, 5154045, 5418355, 14087723, 16255065, 42263169, 70438615, 211315845]

約数ペア:

[(1, 211315845), (3, 70438615), (5, 42263169), (13, 16255065), (15, 14087723), (39, 5418355), (41, 5154045), (65, 3251013), (123, 1718015), (195, 1083671), (205, 1030809), (533, 396465), (615, 343603), (1599, 132155), (2665, 79293), (7995, 26431)]