17818905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 33384960

約数和(自身を除く): 15566055

約数列:

[1, 3, 5, 13, 15, 23, 29, 39, 65, 69, 87, 115, 137, 145, 195, 299, 345, 377, 411, 435, 667, 685, 897, 1131, 1495, 1781, 1885, 2001, 2055, 3151, 3335, 3973, 4485, 5343, 5655, 8671, 8905, 9453, 10005, 11919, 15755, 19865, 26013, 26715, 40963, 43355, 47265, 51649, 59595, 91379, 122889, 130065, 154947, 204815, 258245, 274137, 456895, 614445, 774735, 1187927, 1370685, 3563781, 5939635, 17818905]

約数ペア:

[(1, 17818905), (3, 5939635), (5, 3563781), (13, 1370685), (15, 1187927), (23, 774735), (29, 614445), (39, 456895), (65, 274137), (69, 258245), (87, 204815), (115, 154947), (137, 130065), (145, 122889), (195, 91379), (299, 59595), (345, 51649), (377, 47265), (411, 43355), (435, 40963), (667, 26715), (685, 26013), (897, 19865), (1131, 15755), (1495, 11919), (1781, 10005), (1885, 9453), (2001, 8905), (2055, 8671), (3151, 5655), (3335, 5343), (3973, 4485)]