20123831679

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1\times {\mathrm{52517}}^1$

素因数の和:52855

約数の個数: 32

約数和(自身を含む): 31218379776

約数和(自身を除く): 11094548097

約数列:

[1, 3, 7, 21, 71, 213, 257, 497, 771, 1491, 1799, 5397, 18247, 52517, 54741, 127729, 157551, 367619, 383187, 1102857, 3728707, 11186121, 13496869, 26100949, 40490607, 78302847, 94478083, 283434249, 958277699, 2874833097, 6707943893, 20123831679]

約数ペア:

[(1, 20123831679), (3, 6707943893), (7, 2874833097), (21, 958277699), (71, 283434249), (213, 94478083), (257, 78302847), (497, 40490607), (771, 26100949), (1491, 13496869), (1799, 11186121), (5397, 3728707), (18247, 1102857), (52517, 383187), (54741, 367619), (127729, 157551)]