19977336

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{7499}}^1$

素因数の和:7548

約数の個数: 48

約数和(自身を含む): 55575000

約数和(自身を除く): 35597664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 7499, 14998, 22497, 29996, 44994, 59992, 67491, 89988, 134982, 179976, 269964, 277463, 539928, 554926, 832389, 1109852, 1664778, 2219704, 2497167, 3329556, 4994334, 6659112, 9988668, 19977336]

約数ペア:

[(1, 19977336), (2, 9988668), (3, 6659112), (4, 4994334), (6, 3329556), (8, 2497167), (9, 2219704), (12, 1664778), (18, 1109852), (24, 832389), (36, 554926), (37, 539928), (72, 277463), (74, 269964), (111, 179976), (148, 134982), (222, 89988), (296, 67491), (333, 59992), (444, 44994), (666, 29996), (888, 22497), (1332, 14998), (2664, 7499)]