289688427

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{647}}^1$

素因数の和:789

約数の個数: 64

約数和(自身を含む): 517570560

約数和(自身を除く): 227882133

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 103, 161, 189, 207, 309, 483, 621, 647, 721, 927, 1449, 1941, 2163, 2369, 2781, 4347, 4529, 5823, 6489, 7107, 13587, 14881, 16583, 17469, 19467, 21321, 40761, 44643, 49749, 63963, 66641, 104167, 122283, 133929, 149247, 199923, 312501, 401787, 447741, 466487, 599769, 937503, 1399461, 1532743, 1799307, 2812509, 4198383, 4598229, 10729201, 12595149, 13794687, 32187603, 41384061, 96562809, 289688427]

約数ペア:

[(1, 289688427), (3, 96562809), (7, 41384061), (9, 32187603), (21, 13794687), (23, 12595149), (27, 10729201), (63, 4598229), (69, 4198383), (103, 2812509), (161, 1799307), (189, 1532743), (207, 1399461), (309, 937503), (483, 599769), (621, 466487), (647, 447741), (721, 401787), (927, 312501), (1449, 199923), (1941, 149247), (2163, 133929), (2369, 122283), (2781, 104167), (4347, 66641), (4529, 63963), (5823, 49749), (6489, 44643), (7107, 40761), (13587, 21321), (14881, 19467), (16583, 17469)]