19888688

素因数分解:

$2^4\times {\mathrm{307}}^1\times {\mathrm{4049}}^1$

素因数の和:4364

約数の個数: 20

約数和(自身を含む): 38669400

約数和(自身を除く): 18780712

約数列:

[1, 2, 4, 8, 16, 307, 614, 1228, 2456, 4049, 4912, 8098, 16196, 32392, 64784, 1243043, 2486086, 4972172, 9944344, 19888688]

約数ペア:

[(1, 19888688), (2, 9944344), (4, 4972172), (8, 2486086), (16, 1243043), (307, 64784), (614, 32392), (1228, 16196), (2456, 8098), (4049, 4912)]