18484708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 36747648

約数和(自身を除く): 18262940

約数列:

[1, 2, 4, 11, 22, 44, 61, 71, 97, 122, 142, 194, 244, 284, 388, 671, 781, 1067, 1342, 1562, 2134, 2684, 3124, 4268, 4331, 5917, 6887, 8662, 11834, 13774, 17324, 23668, 27548, 47641, 65087, 75757, 95282, 130174, 151514, 190564, 260348, 303028, 420107, 840214, 1680428, 4621177, 9242354, 18484708]

約数ペア:

[(1, 18484708), (2, 9242354), (4, 4621177), (11, 1680428), (22, 840214), (44, 420107), (61, 303028), (71, 260348), (97, 190564), (122, 151514), (142, 130174), (194, 95282), (244, 75757), (284, 65087), (388, 47641), (671, 27548), (781, 23668), (1067, 17324), (1342, 13774), (1562, 11834), (2134, 8662), (2684, 6887), (3124, 5917), (4268, 4331)]