20805920457

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{468001}}^1$

素因数の和:468113

約数の個数: 32

約数和(自身を含む): 33246862080

約数和(自身を除く): 12440941623

約数列:

[1, 3, 7, 21, 29, 73, 87, 203, 219, 511, 609, 1533, 2117, 6351, 14819, 44457, 468001, 1404003, 3276007, 9828021, 13572029, 34164073, 40716087, 95004203, 102492219, 239148511, 285012609, 717445533, 990758117, 2972274351, 6935306819, 20805920457]

約数ペア:

[(1, 20805920457), (3, 6935306819), (7, 2972274351), (21, 990758117), (29, 717445533), (73, 285012609), (87, 239148511), (203, 102492219), (219, 95004203), (511, 40716087), (609, 34164073), (1533, 13572029), (2117, 9828021), (6351, 3276007), (14819, 1404003), (44457, 468001)]