157216221

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:216

約数の個数: 80

約数和(自身を含む): 267632640

約数和(自身を除く): 110416419

約数列:

[1, 3, 9, 17, 27, 29, 31, 51, 81, 87, 93, 127, 153, 261, 279, 381, 459, 493, 527, 783, 837, 899, 1143, 1377, 1479, 1581, 2159, 2349, 2511, 2697, 3429, 3683, 3937, 4437, 4743, 6477, 8091, 10287, 11049, 11811, 13311, 14229, 15283, 19431, 24273, 33147, 35433, 39933, 42687, 45849, 58293, 62611, 66929, 72819, 99441, 106299, 114173, 137547, 174879, 187833, 200787, 298323, 318897, 342519, 412641, 563499, 602361, 1027557, 1237923, 1690497, 1807083, 1940941, 3082671, 5071491, 5421249, 5822823, 9248013, 17468469, 52405407, 157216221]

約数ペア:

[(1, 157216221), (3, 52405407), (9, 17468469), (17, 9248013), (27, 5822823), (29, 5421249), (31, 5071491), (51, 3082671), (81, 1940941), (87, 1807083), (93, 1690497), (127, 1237923), (153, 1027557), (261, 602361), (279, 563499), (381, 412641), (459, 342519), (493, 318897), (527, 298323), (783, 200787), (837, 187833), (899, 174879), (1143, 137547), (1377, 114173), (1479, 106299), (1581, 99441), (2159, 72819), (2349, 66929), (2511, 62611), (2697, 58293), (3429, 45849), (3683, 42687), (3937, 39933), (4437, 35433), (4743, 33147), (6477, 24273), (8091, 19431), (10287, 15283), (11049, 14229), (11811, 13311)]