28305458937

素因数分解:

$3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{12721}}^1$

素因数の和:12991

約数の個数: 64

約数和(自身を含む): 48966469120

約数和(自身を除く): 20661010183

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 183, 189, 193, 427, 549, 579, 1281, 1351, 1647, 1737, 3843, 4053, 5211, 11529, 11773, 12159, 12721, 35319, 36477, 38163, 82411, 89047, 105957, 114489, 247233, 267141, 317871, 343467, 741699, 775981, 801423, 2225097, 2327943, 2404269, 2455153, 5431867, 6983829, 7365459, 16295601, 17186071, 20951487, 22096377, 48886803, 51558213, 66289131, 146660409, 149764333, 154674639, 449292999, 464023917, 1048350331, 1347878997, 3145050993, 4043636991, 9435152979, 28305458937]

約数ペア:

[(1, 28305458937), (3, 9435152979), (7, 4043636991), (9, 3145050993), (21, 1347878997), (27, 1048350331), (61, 464023917), (63, 449292999), (183, 154674639), (189, 149764333), (193, 146660409), (427, 66289131), (549, 51558213), (579, 48886803), (1281, 22096377), (1351, 20951487), (1647, 17186071), (1737, 16295601), (3843, 7365459), (4053, 6983829), (5211, 5431867), (11529, 2455153), (11773, 2404269), (12159, 2327943), (12721, 2225097), (35319, 801423), (36477, 775981), (38163, 741699), (82411, 343467), (89047, 317871), (105957, 267141), (114489, 247233)]