201988591

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:463

約数の個数: 32

約数和(自身を含む): 248242176

約数和(自身を除く): 46253585

約数列:

[1, 7, 31, 41, 73, 217, 287, 311, 511, 1271, 2177, 2263, 2993, 8897, 9641, 12751, 15841, 20951, 22703, 67487, 89257, 92783, 158921, 395281, 649481, 703793, 930823, 2766967, 4926551, 6515761, 28855513, 201988591]

約数ペア:

[(1, 201988591), (7, 28855513), (31, 6515761), (41, 4926551), (73, 2766967), (217, 930823), (287, 703793), (311, 649481), (511, 395281), (1271, 158921), (2177, 92783), (2263, 89257), (2993, 67487), (8897, 22703), (9641, 20951), (12751, 15841)]