19997642

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{26951}}^1$

素因数の和:27013

約数の個数: 16

約数和(自身を含む): 34929792

約数和(自身を除く): 14932150

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 26951, 53902, 188657, 377314, 1428403, 2856806, 9998821, 19997642]

約数ペア:

[(1, 19997642), (2, 9998821), (7, 2856806), (14, 1428403), (53, 377314), (106, 188657), (371, 53902), (742, 26951)]