19981776

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{11251}}^1$

素因数の和:11299

約数の個数: 40

約数和(自身を含む): 53019424

約数和(自身を除く): 33037648

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 111, 148, 222, 296, 444, 592, 888, 1776, 11251, 22502, 33753, 45004, 67506, 90008, 135012, 180016, 270024, 416287, 540048, 832574, 1248861, 1665148, 2497722, 3330296, 4995444, 6660592, 9990888, 19981776]

約数ペア:

[(1, 19981776), (2, 9990888), (3, 6660592), (4, 4995444), (6, 3330296), (8, 2497722), (12, 1665148), (16, 1248861), (24, 832574), (37, 540048), (48, 416287), (74, 270024), (111, 180016), (148, 135012), (222, 90008), (296, 67506), (444, 45004), (592, 33753), (888, 22502), (1776, 11251)]