19400247

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 32011200

約数和(自身を除く): 12610953

約数列:

[1, 3, 9, 17, 23, 37, 51, 69, 111, 149, 153, 207, 333, 391, 447, 629, 851, 1173, 1341, 1887, 2533, 2553, 3427, 3519, 5513, 5661, 7599, 7659, 10281, 14467, 16539, 22797, 30843, 43401, 49617, 58259, 93721, 126799, 130203, 174777, 281163, 380397, 524331, 843489, 1141191, 2155583, 6466749, 19400247]

約数ペア:

[(1, 19400247), (3, 6466749), (9, 2155583), (17, 1141191), (23, 843489), (37, 524331), (51, 380397), (69, 281163), (111, 174777), (149, 130203), (153, 126799), (207, 93721), (333, 58259), (391, 49617), (447, 43401), (629, 30843), (851, 22797), (1173, 16539), (1341, 14467), (1887, 10281), (2533, 7659), (2553, 7599), (3427, 5661), (3519, 5513)]