18654776

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 41902080

約数和(自身を除く): 23247304

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 61, 86, 122, 127, 172, 244, 254, 301, 344, 427, 488, 508, 602, 854, 889, 1016, 1204, 1708, 1778, 2408, 2623, 3416, 3556, 5246, 5461, 7112, 7747, 10492, 10922, 15494, 18361, 20984, 21844, 30988, 36722, 38227, 43688, 54229, 61976, 73444, 76454, 108458, 146888, 152908, 216916, 305816, 333121, 433832, 666242, 1332484, 2331847, 2664968, 4663694, 9327388, 18654776]

約数ペア:

[(1, 18654776), (2, 9327388), (4, 4663694), (7, 2664968), (8, 2331847), (14, 1332484), (28, 666242), (43, 433832), (56, 333121), (61, 305816), (86, 216916), (122, 152908), (127, 146888), (172, 108458), (244, 76454), (254, 73444), (301, 61976), (344, 54229), (427, 43688), (488, 38227), (508, 36722), (602, 30988), (854, 21844), (889, 20984), (1016, 18361), (1204, 15494), (1708, 10922), (1778, 10492), (2408, 7747), (2623, 7112), (3416, 5461), (3556, 5246)]