21192151820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{95143}}^1$

素因数の和:95239

約数の個数: 96

約数和(自身を含む): 53451138048

約数和(自身を除く): 32258986228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 43, 70, 74, 86, 140, 148, 172, 185, 215, 259, 301, 370, 430, 518, 602, 740, 860, 1036, 1204, 1295, 1505, 1591, 2590, 3010, 3182, 5180, 6020, 6364, 7955, 11137, 15910, 22274, 31820, 44548, 55685, 95143, 111370, 190286, 222740, 380572, 475715, 666001, 951430, 1332002, 1902860, 2664004, 3330005, 3520291, 4091149, 6660010, 7040582, 8182298, 13320020, 14081164, 16364596, 17601455, 20455745, 24642037, 28638043, 35202910, 40911490, 49284074, 57276086, 70405820, 81822980, 98568148, 114552172, 123210185, 143190215, 151372513, 246420370, 286380430, 302745026, 492840740, 572760860, 605490052, 756862565, 1059607591, 1513725130, 2119215182, 3027450260, 4238430364, 5298037955, 10596075910, 21192151820]

約数ペア:

[(1, 21192151820), (2, 10596075910), (4, 5298037955), (5, 4238430364), (7, 3027450260), (10, 2119215182), (14, 1513725130), (20, 1059607591), (28, 756862565), (35, 605490052), (37, 572760860), (43, 492840740), (70, 302745026), (74, 286380430), (86, 246420370), (140, 151372513), (148, 143190215), (172, 123210185), (185, 114552172), (215, 98568148), (259, 81822980), (301, 70405820), (370, 57276086), (430, 49284074), (518, 40911490), (602, 35202910), (740, 28638043), (860, 24642037), (1036, 20455745), (1204, 17601455), (1295, 16364596), (1505, 14081164), (1591, 13320020), (2590, 8182298), (3010, 7040582), (3182, 6660010), (5180, 4091149), (6020, 3520291), (6364, 3330005), (7955, 2664004), (11137, 1902860), (15910, 1332002), (22274, 951430), (31820, 666001), (44548, 475715), (55685, 380572), (95143, 222740), (111370, 190286)]