21593320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{479}}^1$

素因数の和:527

約数の個数: 96

約数和(自身を含む): 59097600

約数和(自身を除く): 37504280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 115, 140, 161, 184, 196, 230, 245, 280, 322, 392, 460, 479, 490, 644, 805, 920, 958, 980, 1127, 1288, 1610, 1916, 1960, 2254, 2395, 3220, 3353, 3832, 4508, 4790, 5635, 6440, 6706, 9016, 9580, 11017, 11270, 13412, 16765, 19160, 22034, 22540, 23471, 26824, 33530, 44068, 45080, 46942, 55085, 67060, 77119, 88136, 93884, 110170, 117355, 134120, 154238, 187768, 220340, 234710, 308476, 385595, 440680, 469420, 539833, 616952, 771190, 938840, 1079666, 1542380, 2159332, 2699165, 3084760, 4318664, 5398330, 10796660, 21593320]

約数ペア:

[(1, 21593320), (2, 10796660), (4, 5398330), (5, 4318664), (7, 3084760), (8, 2699165), (10, 2159332), (14, 1542380), (20, 1079666), (23, 938840), (28, 771190), (35, 616952), (40, 539833), (46, 469420), (49, 440680), (56, 385595), (70, 308476), (92, 234710), (98, 220340), (115, 187768), (140, 154238), (161, 134120), (184, 117355), (196, 110170), (230, 93884), (245, 88136), (280, 77119), (322, 67060), (392, 55085), (460, 46942), (479, 45080), (490, 44068), (644, 33530), (805, 26824), (920, 23471), (958, 22540), (980, 22034), (1127, 19160), (1288, 16765), (1610, 13412), (1916, 11270), (1960, 11017), (2254, 9580), (2395, 9016), (3220, 6706), (3353, 6440), (3832, 5635), (4508, 4790)]