156663759

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{911}}^1$

素因数の和:1371

約数の個数: 32

約数和(自身を含む): 252149760

約数和(自身を除く): 95486001

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 431, 911, 1293, 2733, 3017, 6377, 8189, 9051, 17309, 19131, 24567, 51927, 57323, 121163, 171969, 363489, 392641, 1177923, 2748487, 7460179, 8245461, 22380537, 52221253, 156663759]

約数ペア:

[(1, 156663759), (3, 52221253), (7, 22380537), (19, 8245461), (21, 7460179), (57, 2748487), (133, 1177923), (399, 392641), (431, 363489), (911, 171969), (1293, 121163), (2733, 57323), (3017, 51927), (6377, 24567), (8189, 19131), (9051, 17309)]