18437988

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 44662464

約数和(自身を除く): 26224476

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 131, 148, 222, 262, 317, 393, 444, 524, 634, 786, 951, 1268, 1572, 1902, 3804, 4847, 9694, 11729, 14541, 19388, 23458, 29082, 35187, 41527, 46916, 58164, 70374, 83054, 124581, 140748, 166108, 249162, 498324, 1536499, 3072998, 4609497, 6145996, 9218994, 18437988]

約数ペア:

[(1, 18437988), (2, 9218994), (3, 6145996), (4, 4609497), (6, 3072998), (12, 1536499), (37, 498324), (74, 249162), (111, 166108), (131, 140748), (148, 124581), (222, 83054), (262, 70374), (317, 58164), (393, 46916), (444, 41527), (524, 35187), (634, 29082), (786, 23458), (951, 19388), (1268, 14541), (1572, 11729), (1902, 9694), (3804, 4847)]