19885136

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{853}}^1$

素因数の和:939

約数の個数: 40

約数和(自身を含む): 40664064

約数和(自身を除く): 20778928

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 248, 376, 496, 752, 853, 1457, 1706, 2914, 3412, 5828, 6824, 11656, 13648, 23312, 26443, 40091, 52886, 80182, 105772, 160364, 211544, 320728, 423088, 641456, 1242821, 2485642, 4971284, 9942568, 19885136]

約数ペア:

[(1, 19885136), (2, 9942568), (4, 4971284), (8, 2485642), (16, 1242821), (31, 641456), (47, 423088), (62, 320728), (94, 211544), (124, 160364), (188, 105772), (248, 80182), (376, 52886), (496, 40091), (752, 26443), (853, 23312), (1457, 13648), (1706, 11656), (2914, 6824), (3412, 5828)]