19645544

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{421}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 38992800

約数和(自身を除く): 19347256

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 307, 421, 614, 842, 1228, 1684, 2456, 3368, 5833, 7999, 11666, 15998, 23332, 31996, 46664, 63992, 129247, 258494, 516988, 1033976, 2455693, 4911386, 9822772, 19645544]

約数ペア:

[(1, 19645544), (2, 9822772), (4, 4911386), (8, 2455693), (19, 1033976), (38, 516988), (76, 258494), (152, 129247), (307, 63992), (421, 46664), (614, 31996), (842, 23332), (1228, 15998), (1684, 11666), (2456, 7999), (3368, 5833)]