20122011

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 36341760

約数和(自身を除く): 16219749

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 79, 91, 117, 237, 273, 311, 553, 711, 819, 933, 1027, 1659, 2177, 2799, 3081, 4043, 4977, 6531, 7189, 9243, 12129, 19593, 21567, 24569, 28301, 36387, 64701, 73707, 84903, 171983, 221121, 254709, 319397, 515949, 958191, 1547847, 2235779, 2874573, 6707337, 20122011]

約数ペア:

[(1, 20122011), (3, 6707337), (7, 2874573), (9, 2235779), (13, 1547847), (21, 958191), (39, 515949), (63, 319397), (79, 254709), (91, 221121), (117, 171983), (237, 84903), (273, 73707), (311, 64701), (553, 36387), (711, 28301), (819, 24569), (933, 21567), (1027, 19593), (1659, 12129), (2177, 9243), (2799, 7189), (3081, 6531), (4043, 4977)]