21975400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5783}}^1$

素因数の和:5818

約数の個数: 48

約数和(自身を含む): 53791200

約数和(自身を除く): 31815800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5783, 11566, 23132, 28915, 46264, 57830, 109877, 115660, 144575, 219754, 231320, 289150, 439508, 549385, 578300, 879016, 1098770, 1156600, 2197540, 2746925, 4395080, 5493850, 10987700, 21975400]

約数ペア:

[(1, 21975400), (2, 10987700), (4, 5493850), (5, 4395080), (8, 2746925), (10, 2197540), (19, 1156600), (20, 1098770), (25, 879016), (38, 578300), (40, 549385), (50, 439508), (76, 289150), (95, 231320), (100, 219754), (152, 144575), (190, 115660), (200, 109877), (380, 57830), (475, 46264), (760, 28915), (950, 23132), (1900, 11566), (3800, 5783)]