21822920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1321}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 57110400

約数和(自身を除く): 35287480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 118, 140, 236, 280, 295, 413, 472, 590, 826, 1180, 1321, 1652, 2065, 2360, 2642, 3304, 4130, 5284, 6605, 8260, 9247, 10568, 13210, 16520, 18494, 26420, 36988, 46235, 52840, 73976, 77939, 92470, 155878, 184940, 311756, 369880, 389695, 545573, 623512, 779390, 1091146, 1558780, 2182292, 2727865, 3117560, 4364584, 5455730, 10911460, 21822920]

約数ペア:

[(1, 21822920), (2, 10911460), (4, 5455730), (5, 4364584), (7, 3117560), (8, 2727865), (10, 2182292), (14, 1558780), (20, 1091146), (28, 779390), (35, 623512), (40, 545573), (56, 389695), (59, 369880), (70, 311756), (118, 184940), (140, 155878), (236, 92470), (280, 77939), (295, 73976), (413, 52840), (472, 46235), (590, 36988), (826, 26420), (1180, 18494), (1321, 16520), (1652, 13210), (2065, 10568), (2360, 9247), (2642, 8260), (3304, 6605), (4130, 5284)]