19936788

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 47820864

約数和(自身を除く): 27884076

約数列:

[1, 2, 3, 4, 6, 12, 67, 134, 137, 181, 201, 268, 274, 362, 402, 411, 543, 548, 724, 804, 822, 1086, 1644, 2172, 9179, 12127, 18358, 24254, 24797, 27537, 36381, 36716, 48508, 49594, 55074, 72762, 74391, 99188, 110148, 145524, 148782, 297564, 1661399, 3322798, 4984197, 6645596, 9968394, 19936788]

約数ペア:

[(1, 19936788), (2, 9968394), (3, 6645596), (4, 4984197), (6, 3322798), (12, 1661399), (67, 297564), (134, 148782), (137, 145524), (181, 110148), (201, 99188), (268, 74391), (274, 72762), (362, 55074), (402, 49594), (411, 48508), (543, 36716), (548, 36381), (724, 27537), (804, 24797), (822, 24254), (1086, 18358), (1644, 12127), (2172, 9179)]