18951816

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 56448000

約数和(自身を除く): 37496184

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 23, 24, 26, 38, 39, 46, 52, 57, 69, 76, 78, 92, 104, 114, 138, 139, 152, 156, 184, 228, 247, 276, 278, 299, 312, 417, 437, 456, 494, 552, 556, 598, 741, 834, 874, 897, 988, 1112, 1196, 1311, 1482, 1668, 1748, 1794, 1807, 1976, 2392, 2622, 2641, 2964, 3197, 3336, 3496, 3588, 3614, 5244, 5282, 5421, 5681, 5928, 6394, 7176, 7228, 7923, 9591, 10488, 10564, 10842, 11362, 12788, 14456, 15846, 17043, 19182, 21128, 21684, 22724, 25576, 31692, 34086, 34333, 38364, 41561, 43368, 45448, 60743, 63384, 68172, 68666, 76728, 83122, 102999, 121486, 124683, 136344, 137332, 166244, 182229, 205998, 242972, 249366, 274664, 332488, 364458, 411996, 485944, 498732, 728916, 789659, 823992, 997464, 1457832, 1579318, 2368977, 3158636, 4737954, 6317272, 9475908, 18951816]

約数ペア:

[(1, 18951816), (2, 9475908), (3, 6317272), (4, 4737954), (6, 3158636), (8, 2368977), (12, 1579318), (13, 1457832), (19, 997464), (23, 823992), (24, 789659), (26, 728916), (38, 498732), (39, 485944), (46, 411996), (52, 364458), (57, 332488), (69, 274664), (76, 249366), (78, 242972), (92, 205998), (104, 182229), (114, 166244), (138, 137332), (139, 136344), (152, 124683), (156, 121486), (184, 102999), (228, 83122), (247, 76728), (276, 68666), (278, 68172), (299, 63384), (312, 60743), (417, 45448), (437, 43368), (456, 41561), (494, 38364), (552, 34333), (556, 34086), (598, 31692), (741, 25576), (834, 22724), (874, 21684), (897, 21128), (988, 19182), (1112, 17043), (1196, 15846), (1311, 14456), (1482, 12788), (1668, 11362), (1748, 10842), (1794, 10564), (1807, 10488), (1976, 9591), (2392, 7923), (2622, 7228), (2641, 7176), (2964, 6394), (3197, 5928), (3336, 5681), (3496, 5421), (3588, 5282), (3614, 5244)]