21614985

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 44582400

約数和(自身を除く): 22967415

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 89, 105, 135, 189, 257, 267, 315, 445, 623, 771, 801, 945, 1285, 1335, 1799, 1869, 2313, 2403, 3115, 3855, 4005, 5397, 5607, 6939, 8995, 9345, 11565, 12015, 16191, 16821, 22873, 26985, 28035, 34695, 48573, 68619, 80955, 84105, 114365, 160111, 205857, 242865, 343095, 480333, 617571, 800555, 1029285, 1440999, 2401665, 3087855, 4322997, 7204995, 21614985]

約数ペア:

[(1, 21614985), (3, 7204995), (5, 4322997), (7, 3087855), (9, 2401665), (15, 1440999), (21, 1029285), (27, 800555), (35, 617571), (45, 480333), (63, 343095), (89, 242865), (105, 205857), (135, 160111), (189, 114365), (257, 84105), (267, 80955), (315, 68619), (445, 48573), (623, 34695), (771, 28035), (801, 26985), (945, 22873), (1285, 16821), (1335, 16191), (1799, 12015), (1869, 11565), (2313, 9345), (2403, 8995), (3115, 6939), (3855, 5607), (4005, 5397)]