22581988

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 48538616

約数和(自身を除く): 25956628

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 97, 121, 143, 148, 194, 242, 286, 388, 407, 481, 484, 572, 814, 962, 1067, 1261, 1573, 1628, 1924, 2134, 2522, 3146, 3589, 4268, 4477, 5044, 5291, 6292, 7178, 8954, 10582, 11737, 13871, 14356, 17908, 21164, 23474, 27742, 39479, 46657, 46948, 55484, 58201, 78958, 93314, 116402, 152581, 157916, 186628, 232804, 305162, 434269, 513227, 610324, 868538, 1026454, 1737076, 2052908, 5645497, 11290994, 22581988]

約数ペア:

[(1, 22581988), (2, 11290994), (4, 5645497), (11, 2052908), (13, 1737076), (22, 1026454), (26, 868538), (37, 610324), (44, 513227), (52, 434269), (74, 305162), (97, 232804), (121, 186628), (143, 157916), (148, 152581), (194, 116402), (242, 93314), (286, 78958), (388, 58201), (407, 55484), (481, 46948), (484, 46657), (572, 39479), (814, 27742), (962, 23474), (1067, 21164), (1261, 17908), (1573, 14356), (1628, 13871), (1924, 11737), (2134, 10582), (2522, 8954), (3146, 7178), (3589, 6292), (4268, 5291), (4477, 5044)]