21417620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8999}}^1$

素因数の和:9032

約数の個数: 48

約数和(自身を含む): 54432000

約数和(自身を除く): 33014380

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8999, 17998, 35996, 44995, 62993, 89990, 125986, 152983, 179980, 251972, 305966, 314965, 611932, 629930, 764915, 1070881, 1259860, 1529830, 2141762, 3059660, 4283524, 5354405, 10708810, 21417620]

約数ペア:

[(1, 21417620), (2, 10708810), (4, 5354405), (5, 4283524), (7, 3059660), (10, 2141762), (14, 1529830), (17, 1259860), (20, 1070881), (28, 764915), (34, 629930), (35, 611932), (68, 314965), (70, 305966), (85, 251972), (119, 179980), (140, 152983), (170, 125986), (238, 89990), (340, 62993), (476, 44995), (595, 35996), (1190, 17998), (2380, 8999)]