21231591640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3296831}}^1$

素因数の和:3296872

約数の個数: 64

約数和(自身を含む): 56969256960

約数和(自身を除く): 35737665320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 3296831, 6593662, 13187324, 16484155, 23077817, 26374648, 32968310, 46155634, 65936620, 75827113, 92311268, 115389085, 131873240, 151654226, 184622536, 230778170, 303308452, 379135565, 461556340, 530789791, 606616904, 758271130, 923112680, 1061579582, 1516542260, 2123159164, 2653948955, 3033084520, 4246318328, 5307897910, 10615795820, 21231591640]

約数ペア:

[(1, 21231591640), (2, 10615795820), (4, 5307897910), (5, 4246318328), (7, 3033084520), (8, 2653948955), (10, 2123159164), (14, 1516542260), (20, 1061579582), (23, 923112680), (28, 758271130), (35, 606616904), (40, 530789791), (46, 461556340), (56, 379135565), (70, 303308452), (92, 230778170), (115, 184622536), (140, 151654226), (161, 131873240), (184, 115389085), (230, 92311268), (280, 75827113), (322, 65936620), (460, 46155634), (644, 32968310), (805, 26374648), (920, 23077817), (1288, 16484155), (1610, 13187324), (3220, 6593662), (6440, 3296831)]