18743792

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{503}}^1$

素因数の和:665

約数の個数: 40

約数和(自身を含む): 38810016

約数和(自身を除く): 20066224

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 137, 272, 274, 503, 548, 1006, 1096, 2012, 2192, 2329, 4024, 4658, 8048, 8551, 9316, 17102, 18632, 34204, 37264, 68408, 68911, 136816, 137822, 275644, 551288, 1102576, 1171487, 2342974, 4685948, 9371896, 18743792]

約数ペア:

[(1, 18743792), (2, 9371896), (4, 4685948), (8, 2342974), (16, 1171487), (17, 1102576), (34, 551288), (68, 275644), (136, 137822), (137, 136816), (272, 68911), (274, 68408), (503, 37264), (548, 34204), (1006, 18632), (1096, 17102), (2012, 9316), (2192, 8551), (2329, 8048), (4024, 4658)]