18811884

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 57915648

約数和(自身を除く): 39103764

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 23, 26, 28, 39, 42, 46, 49, 52, 69, 78, 84, 91, 92, 98, 107, 138, 147, 156, 161, 182, 196, 214, 273, 276, 294, 299, 321, 322, 364, 428, 483, 546, 588, 598, 637, 642, 644, 749, 897, 966, 1092, 1127, 1196, 1274, 1284, 1391, 1498, 1794, 1911, 1932, 2093, 2247, 2254, 2461, 2548, 2782, 2996, 3381, 3588, 3822, 4173, 4186, 4494, 4508, 4922, 5243, 5564, 6279, 6762, 7383, 7644, 8346, 8372, 8988, 9737, 9844, 10486, 12558, 13524, 14651, 14766, 15729, 16692, 17227, 19474, 20972, 25116, 29211, 29302, 29532, 31458, 31993, 34454, 38948, 43953, 51681, 58422, 58604, 62916, 63986, 68159, 68908, 87906, 95979, 103362, 116844, 120589, 127972, 136318, 175812, 191958, 204477, 206724, 223951, 241178, 272636, 361767, 383916, 408954, 447902, 482356, 671853, 723534, 817908, 895804, 1343706, 1447068, 1567657, 2687412, 3135314, 4702971, 6270628, 9405942, 18811884]

約数ペア:

[(1, 18811884), (2, 9405942), (3, 6270628), (4, 4702971), (6, 3135314), (7, 2687412), (12, 1567657), (13, 1447068), (14, 1343706), (21, 895804), (23, 817908), (26, 723534), (28, 671853), (39, 482356), (42, 447902), (46, 408954), (49, 383916), (52, 361767), (69, 272636), (78, 241178), (84, 223951), (91, 206724), (92, 204477), (98, 191958), (107, 175812), (138, 136318), (147, 127972), (156, 120589), (161, 116844), (182, 103362), (196, 95979), (214, 87906), (273, 68908), (276, 68159), (294, 63986), (299, 62916), (321, 58604), (322, 58422), (364, 51681), (428, 43953), (483, 38948), (546, 34454), (588, 31993), (598, 31458), (637, 29532), (642, 29302), (644, 29211), (749, 25116), (897, 20972), (966, 19474), (1092, 17227), (1127, 16692), (1196, 15729), (1274, 14766), (1284, 14651), (1391, 13524), (1498, 12558), (1794, 10486), (1911, 9844), (1932, 9737), (2093, 8988), (2247, 8372), (2254, 8346), (2461, 7644), (2548, 7383), (2782, 6762), (2996, 6279), (3381, 5564), (3588, 5243), (3822, 4922), (4173, 4508), (4186, 4494)]