21000350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2069}}^1$

素因数の和:2117

約数の個数: 48

約数和(自身を含む): 46202400

約数和(自身を除く): 25202050

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 50, 58, 70, 145, 175, 203, 290, 350, 406, 725, 1015, 1450, 2030, 2069, 4138, 5075, 10150, 10345, 14483, 20690, 28966, 51725, 60001, 72415, 103450, 120002, 144830, 300005, 362075, 420007, 600010, 724150, 840014, 1500025, 2100035, 3000050, 4200070, 10500175, 21000350]

約数ペア:

[(1, 21000350), (2, 10500175), (5, 4200070), (7, 3000050), (10, 2100035), (14, 1500025), (25, 840014), (29, 724150), (35, 600010), (50, 420007), (58, 362075), (70, 300005), (145, 144830), (175, 120002), (203, 103450), (290, 72415), (350, 60001), (406, 51725), (725, 28966), (1015, 20690), (1450, 14483), (2030, 10345), (2069, 10150), (4138, 5075)]