19784196

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{4951}}^1$

素因数の和:5001

約数の個数: 48

約数和(自身を含む): 52689280

約数和(自身を除く): 32905084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 666, 999, 1332, 1998, 3996, 4951, 9902, 14853, 19804, 29706, 44559, 59412, 89118, 133677, 178236, 183187, 267354, 366374, 534708, 549561, 732748, 1099122, 1648683, 2198244, 3297366, 4946049, 6594732, 9892098, 19784196]

約数ペア:

[(1, 19784196), (2, 9892098), (3, 6594732), (4, 4946049), (6, 3297366), (9, 2198244), (12, 1648683), (18, 1099122), (27, 732748), (36, 549561), (37, 534708), (54, 366374), (74, 267354), (108, 183187), (111, 178236), (148, 133677), (222, 89118), (333, 59412), (444, 44559), (666, 29706), (999, 19804), (1332, 14853), (1998, 9902), (3996, 4951)]