71218251

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 122304000

約数和(自身を除く): 51085749

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 59, 117, 171, 177, 181, 247, 351, 513, 531, 543, 741, 767, 1121, 1593, 1629, 2223, 2301, 2353, 3363, 3439, 4887, 6669, 6903, 7059, 10089, 10317, 10679, 14573, 20709, 21177, 30267, 30951, 32037, 43719, 44707, 63531, 92853, 96111, 131157, 134121, 138827, 202901, 288333, 393471, 402363, 416481, 608703, 1207089, 1249443, 1826109, 2637713, 3748329, 5478327, 7913139, 23739417, 71218251]

約数ペア:

[(1, 71218251), (3, 23739417), (9, 7913139), (13, 5478327), (19, 3748329), (27, 2637713), (39, 1826109), (57, 1249443), (59, 1207089), (117, 608703), (171, 416481), (177, 402363), (181, 393471), (247, 288333), (351, 202901), (513, 138827), (531, 134121), (543, 131157), (741, 96111), (767, 92853), (1121, 63531), (1593, 44707), (1629, 43719), (2223, 32037), (2301, 30951), (2353, 30267), (3363, 21177), (3439, 20709), (4887, 14573), (6669, 10679), (6903, 10317), (7059, 10089)]