21459260

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{617}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 47343744

約数和(自身を除く): 25884484

約数列:

[1, 2, 4, 5, 10, 20, 37, 47, 74, 94, 148, 185, 188, 235, 370, 470, 617, 740, 940, 1234, 1739, 2468, 3085, 3478, 6170, 6956, 8695, 12340, 17390, 22829, 28999, 34780, 45658, 57998, 91316, 114145, 115996, 144995, 228290, 289990, 456580, 579980, 1072963, 2145926, 4291852, 5364815, 10729630, 21459260]

約数ペア:

[(1, 21459260), (2, 10729630), (4, 5364815), (5, 4291852), (10, 2145926), (20, 1072963), (37, 579980), (47, 456580), (74, 289990), (94, 228290), (148, 144995), (185, 115996), (188, 114145), (235, 91316), (370, 57998), (470, 45658), (617, 34780), (740, 28999), (940, 22829), (1234, 17390), (1739, 12340), (2468, 8695), (3085, 6956), (3478, 6170)]