19878028

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{7069}}^1$

素因数の和:7129

約数の個数: 24

約数和(自身を含む): 37612400

約数和(自身を除く): 17734372

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 1406, 2812, 7069, 14138, 28276, 134311, 261553, 268622, 523106, 537244, 1046212, 4969507, 9939014, 19878028]

約数ペア:

[(1, 19878028), (2, 9939014), (4, 4969507), (19, 1046212), (37, 537244), (38, 523106), (74, 268622), (76, 261553), (148, 134311), (703, 28276), (1406, 14138), (2812, 7069)]