20447325

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{4783}}^1$

素因数の和:4818

約数の個数: 36

約数和(自身を含む): 38559040

約数和(自身を除く): 18111715

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 4783, 14349, 23915, 43047, 71745, 90877, 119575, 215235, 272631, 358725, 454385, 817893, 1076175, 1363155, 2271925, 4089465, 6815775, 20447325]

約数ペア:

[(1, 20447325), (3, 6815775), (5, 4089465), (9, 2271925), (15, 1363155), (19, 1076175), (25, 817893), (45, 454385), (57, 358725), (75, 272631), (95, 215235), (171, 119575), (225, 90877), (285, 71745), (475, 43047), (855, 23915), (1425, 14349), (4275, 4783)]