21609930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:519

約数の個数: 64

約数和(自身を含む): 54691200

約数和(自身を除く): 33081270

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 59, 87, 118, 145, 174, 177, 290, 295, 354, 421, 435, 590, 842, 870, 885, 1263, 1711, 1770, 2105, 2526, 3422, 4210, 5133, 6315, 8555, 10266, 12209, 12630, 17110, 24418, 24839, 25665, 36627, 49678, 51330, 61045, 73254, 74517, 122090, 124195, 149034, 183135, 248390, 366270, 372585, 720331, 745170, 1440662, 2160993, 3601655, 4321986, 7203310, 10804965, 21609930]

約数ペア:

[(1, 21609930), (2, 10804965), (3, 7203310), (5, 4321986), (6, 3601655), (10, 2160993), (15, 1440662), (29, 745170), (30, 720331), (58, 372585), (59, 366270), (87, 248390), (118, 183135), (145, 149034), (174, 124195), (177, 122090), (290, 74517), (295, 73254), (354, 61045), (421, 51330), (435, 49678), (590, 36627), (842, 25665), (870, 24839), (885, 24418), (1263, 17110), (1711, 12630), (1770, 12209), (2105, 10266), (2526, 8555), (3422, 6315), (4210, 5133)]