289784709

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{263}}^1$

素因数の和:559

約数の個数: 40

約数和(自身を含む): 443638272

約数和(自身を除く): 153853563

約数列:

[1, 3, 9, 27, 61, 81, 183, 223, 263, 549, 669, 789, 1647, 2007, 2367, 4941, 6021, 7101, 13603, 16043, 18063, 21303, 40809, 48129, 58649, 122427, 144387, 175947, 367281, 433161, 527841, 1101843, 1299483, 1583523, 3577589, 4750569, 10732767, 32198301, 96594903, 289784709]

約数ペア:

[(1, 289784709), (3, 96594903), (9, 32198301), (27, 10732767), (61, 4750569), (81, 3577589), (183, 1583523), (223, 1299483), (263, 1101843), (549, 527841), (669, 433161), (789, 367281), (1647, 175947), (2007, 144387), (2367, 122427), (4941, 58649), (6021, 48129), (7101, 40809), (13603, 21303), (16043, 18063)]