19397694

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 23940546

約数列:

[1, 2, 3, 6, 23, 29, 37, 46, 58, 69, 74, 87, 111, 131, 138, 174, 222, 262, 393, 667, 786, 851, 1073, 1334, 1702, 2001, 2146, 2553, 3013, 3219, 3799, 4002, 4847, 5106, 6026, 6438, 7598, 9039, 9694, 11397, 14541, 18078, 22794, 24679, 29082, 49358, 74037, 87377, 111481, 140563, 148074, 174754, 222962, 262131, 281126, 334443, 421689, 524262, 668886, 843378, 3232949, 6465898, 9698847, 19397694]

約数ペア:

[(1, 19397694), (2, 9698847), (3, 6465898), (6, 3232949), (23, 843378), (29, 668886), (37, 524262), (46, 421689), (58, 334443), (69, 281126), (74, 262131), (87, 222962), (111, 174754), (131, 148074), (138, 140563), (174, 111481), (222, 87377), (262, 74037), (393, 49358), (667, 29082), (786, 24679), (851, 22794), (1073, 18078), (1334, 14541), (1702, 11397), (2001, 9694), (2146, 9039), (2553, 7598), (3013, 6438), (3219, 6026), (3799, 5106), (4002, 4847)]