668879991

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{32299}}^1$

素因数の和:32380

約数の個数: 32

約数和(自身を含む): 1085280000

約数和(自身を除く): 416400009

約数列:

[1, 3, 9, 13, 27, 39, 59, 117, 177, 351, 531, 767, 1593, 2301, 6903, 20709, 32299, 96897, 290691, 419887, 872073, 1259661, 1905641, 3778983, 5716923, 11336949, 17150769, 24773333, 51452307, 74319999, 222959997, 668879991]

約数ペア:

[(1, 668879991), (3, 222959997), (9, 74319999), (13, 51452307), (27, 24773333), (39, 17150769), (59, 11336949), (117, 5716923), (177, 3778983), (351, 1905641), (531, 1259661), (767, 872073), (1593, 419887), (2301, 290691), (6903, 96897), (20709, 32299)]