18995888

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{19463}}^1$

素因数の和:19532

約数の個数: 20

約数和(自身を含む): 37409808

約数和(自身を除く): 18413920

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 19463, 38926, 77852, 155704, 311408, 1187243, 2374486, 4748972, 9497944, 18995888]

約数ペア:

[(1, 18995888), (2, 9497944), (4, 4748972), (8, 2374486), (16, 1187243), (61, 311408), (122, 155704), (244, 77852), (488, 38926), (976, 19463)]