18086516

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 38019072

約数和(自身を除く): 19932556

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 67, 124, 134, 217, 268, 311, 434, 469, 622, 868, 938, 1244, 1876, 2077, 2177, 4154, 4354, 8308, 8708, 9641, 14539, 19282, 20837, 29078, 38564, 41674, 58156, 67487, 83348, 134974, 145859, 269948, 291718, 583436, 645947, 1291894, 2583788, 4521629, 9043258, 18086516]

約数ペア:

[(1, 18086516), (2, 9043258), (4, 4521629), (7, 2583788), (14, 1291894), (28, 645947), (31, 583436), (62, 291718), (67, 269948), (124, 145859), (134, 134974), (217, 83348), (268, 67487), (311, 58156), (434, 41674), (469, 38564), (622, 29078), (868, 20837), (938, 19282), (1244, 14539), (1876, 9641), (2077, 8708), (2177, 8308), (4154, 4354)]