20921152015

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{45131}}^1$

素因数の和:45327

約数の個数: 32

約数和(自身を含む): 27295833600

約数和(自身を除く): 6374681585

約数列:

[1, 5, 23, 29, 115, 139, 145, 667, 695, 3197, 3335, 4031, 15985, 20155, 45131, 92713, 225655, 463565, 1038013, 1308799, 5190065, 6273209, 6543995, 30102377, 31366045, 144283807, 150511885, 181923061, 721419035, 909615305, 4184230403, 20921152015]

約数ペア:

[(1, 20921152015), (5, 4184230403), (23, 909615305), (29, 721419035), (115, 181923061), (139, 150511885), (145, 144283807), (667, 31366045), (695, 30102377), (3197, 6543995), (3335, 6273209), (4031, 5190065), (15985, 1308799), (20155, 1038013), (45131, 463565), (92713, 225655)]