21979860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{887}}^1$

素因数の和:965

約数の個数: 96

約数和(自身を含む): 71608320

約数和(自身を除く): 49628460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 59, 60, 70, 84, 105, 118, 140, 177, 210, 236, 295, 354, 413, 420, 590, 708, 826, 885, 887, 1180, 1239, 1652, 1770, 1774, 2065, 2478, 2661, 3540, 3548, 4130, 4435, 4956, 5322, 6195, 6209, 8260, 8870, 10644, 12390, 12418, 13305, 17740, 18627, 24780, 24836, 26610, 31045, 37254, 52333, 53220, 62090, 74508, 93135, 104666, 124180, 156999, 186270, 209332, 261665, 313998, 366331, 372540, 523330, 627996, 732662, 784995, 1046660, 1098993, 1465324, 1569990, 1831655, 2197986, 3139980, 3663310, 4395972, 5494965, 7326620, 10989930, 21979860]

約数ペア:

[(1, 21979860), (2, 10989930), (3, 7326620), (4, 5494965), (5, 4395972), (6, 3663310), (7, 3139980), (10, 2197986), (12, 1831655), (14, 1569990), (15, 1465324), (20, 1098993), (21, 1046660), (28, 784995), (30, 732662), (35, 627996), (42, 523330), (59, 372540), (60, 366331), (70, 313998), (84, 261665), (105, 209332), (118, 186270), (140, 156999), (177, 124180), (210, 104666), (236, 93135), (295, 74508), (354, 62090), (413, 53220), (420, 52333), (590, 37254), (708, 31045), (826, 26610), (885, 24836), (887, 24780), (1180, 18627), (1239, 17740), (1652, 13305), (1770, 12418), (1774, 12390), (2065, 10644), (2478, 8870), (2661, 8260), (3540, 6209), (3548, 6195), (4130, 5322), (4435, 4956)]