19616816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{373}}^1$

素因数の和:573

約数の個数: 40

約数和(自身を含む): 40347120

約数和(自身を除く): 20730304

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 173, 304, 346, 373, 692, 746, 1384, 1492, 2768, 2984, 3287, 5968, 6574, 7087, 13148, 14174, 26296, 28348, 52592, 56696, 64529, 113392, 129058, 258116, 516232, 1032464, 1226051, 2452102, 4904204, 9808408, 19616816]

約数ペア:

[(1, 19616816), (2, 9808408), (4, 4904204), (8, 2452102), (16, 1226051), (19, 1032464), (38, 516232), (76, 258116), (152, 129058), (173, 113392), (304, 64529), (346, 56696), (373, 52592), (692, 28348), (746, 26296), (1384, 14174), (1492, 13148), (2768, 7087), (2984, 6574), (3287, 5968)]