21979332

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{569}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 59131800

約数和(自身を除く): 37152468

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 37, 58, 74, 87, 111, 116, 148, 174, 222, 261, 333, 348, 444, 522, 569, 666, 1044, 1073, 1138, 1332, 1707, 2146, 2276, 3219, 3414, 4292, 5121, 6438, 6828, 9657, 10242, 12876, 16501, 19314, 20484, 21053, 33002, 38628, 42106, 49503, 63159, 66004, 84212, 99006, 126318, 148509, 189477, 198012, 252636, 297018, 378954, 594036, 610537, 757908, 1221074, 1831611, 2442148, 3663222, 5494833, 7326444, 10989666, 21979332]

約数ペア:

[(1, 21979332), (2, 10989666), (3, 7326444), (4, 5494833), (6, 3663222), (9, 2442148), (12, 1831611), (18, 1221074), (29, 757908), (36, 610537), (37, 594036), (58, 378954), (74, 297018), (87, 252636), (111, 198012), (116, 189477), (148, 148509), (174, 126318), (222, 99006), (261, 84212), (333, 66004), (348, 63159), (444, 49503), (522, 42106), (569, 38628), (666, 33002), (1044, 21053), (1073, 20484), (1138, 19314), (1332, 16501), (1707, 12876), (2146, 10242), (2276, 9657), (3219, 6828), (3414, 6438), (4292, 5121)]