21089970

素因数分解:

$2^1\times 3^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:299

約数の個数: 112

約数和(自身を含む): 62327232

約数和(自身を除く): 41237262

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 81, 90, 99, 110, 135, 162, 165, 198, 243, 263, 270, 297, 330, 405, 486, 495, 526, 594, 729, 789, 810, 891, 990, 1215, 1315, 1458, 1485, 1578, 1782, 2367, 2430, 2630, 2673, 2893, 2970, 3645, 3945, 4455, 4734, 5346, 5786, 7101, 7290, 7890, 8019, 8679, 8910, 11835, 13365, 14202, 14465, 16038, 17358, 21303, 23670, 26037, 26730, 28930, 35505, 40095, 42606, 43395, 52074, 63909, 71010, 78111, 80190, 86790, 106515, 127818, 130185, 156222, 191727, 213030, 234333, 260370, 319545, 383454, 390555, 468666, 639090, 702999, 781110, 958635, 1171665, 1405998, 1917270, 2108997, 2343330, 3514995, 4217994, 7029990, 10544985, 21089970]

約数ペア:

[(1, 21089970), (2, 10544985), (3, 7029990), (5, 4217994), (6, 3514995), (9, 2343330), (10, 2108997), (11, 1917270), (15, 1405998), (18, 1171665), (22, 958635), (27, 781110), (30, 702999), (33, 639090), (45, 468666), (54, 390555), (55, 383454), (66, 319545), (81, 260370), (90, 234333), (99, 213030), (110, 191727), (135, 156222), (162, 130185), (165, 127818), (198, 106515), (243, 86790), (263, 80190), (270, 78111), (297, 71010), (330, 63909), (405, 52074), (486, 43395), (495, 42606), (526, 40095), (594, 35505), (729, 28930), (789, 26730), (810, 26037), (891, 23670), (990, 21303), (1215, 17358), (1315, 16038), (1458, 14465), (1485, 14202), (1578, 13365), (1782, 11835), (2367, 8910), (2430, 8679), (2630, 8019), (2673, 7890), (2893, 7290), (2970, 7101), (3645, 5786), (3945, 5346), (4455, 4734)]