201521961

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{383}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 327075840

約数和(自身を除く): 125553879

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 181, 323, 383, 543, 969, 1149, 1629, 2907, 3077, 3439, 3447, 6511, 7277, 9231, 10317, 19533, 21831, 27693, 30951, 58463, 58599, 65493, 69323, 123709, 175389, 207969, 371127, 526167, 623907, 1113381, 1178491, 1317137, 3535473, 3951411, 10606419, 11854233, 22391329, 67173987, 201521961]

約数ペア:

[(1, 201521961), (3, 67173987), (9, 22391329), (17, 11854233), (19, 10606419), (51, 3951411), (57, 3535473), (153, 1317137), (171, 1178491), (181, 1113381), (323, 623907), (383, 526167), (543, 371127), (969, 207969), (1149, 175389), (1629, 123709), (2907, 69323), (3077, 65493), (3439, 58599), (3447, 58463), (6511, 30951), (7277, 27693), (9231, 21831), (10317, 19533)]