18953978

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{631}}^1\times {\mathrm{653}}^1$

素因数の和:1309

約数の個数: 16

約数和(自身を含む): 29759616

約数和(自身を除く): 10805638

約数列:

[1, 2, 23, 46, 631, 653, 1262, 1306, 14513, 15019, 29026, 30038, 412043, 824086, 9476989, 18953978]

約数ペア:

[(1, 18953978), (2, 9476989), (23, 824086), (46, 412043), (631, 30038), (653, 29026), (1262, 15019), (1306, 14513)]