20512483971

素因数分解:

$3^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{419}}^1\times {\mathrm{6151}}^1$

素因数の和:6959

約数の個数: 32

約数和(自身を含む): 31419494400

約数和(自身を除く): 10907010429

約数列:

[1, 3, 7, 21, 379, 419, 1137, 1257, 2653, 2933, 6151, 7959, 8799, 18453, 43057, 129171, 158801, 476403, 1111607, 2331229, 2577269, 3334821, 6993687, 7731807, 16318603, 18040883, 48955809, 54122649, 976784951, 2930354853, 6837494657, 20512483971]

約数ペア:

[(1, 20512483971), (3, 6837494657), (7, 2930354853), (21, 976784951), (379, 54122649), (419, 48955809), (1137, 18040883), (1257, 16318603), (2653, 7731807), (2933, 6993687), (6151, 3334821), (7959, 2577269), (8799, 2331229), (18453, 1111607), (43057, 476403), (129171, 158801)]