21537045

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{599}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 40435200

約数和(自身を除く): 18898155

約数列:

[1, 3, 5, 9, 15, 17, 45, 47, 51, 85, 141, 153, 235, 255, 423, 599, 705, 765, 799, 1797, 2115, 2397, 2995, 3995, 5391, 7191, 8985, 10183, 11985, 26955, 28153, 30549, 35955, 50915, 84459, 91647, 140765, 152745, 253377, 422295, 458235, 478601, 1266885, 1435803, 2393005, 4307409, 7179015, 21537045]

約数ペア:

[(1, 21537045), (3, 7179015), (5, 4307409), (9, 2393005), (15, 1435803), (17, 1266885), (45, 478601), (47, 458235), (51, 422295), (85, 253377), (141, 152745), (153, 140765), (235, 91647), (255, 84459), (423, 50915), (599, 35955), (705, 30549), (765, 28153), (799, 26955), (1797, 11985), (2115, 10183), (2397, 8985), (2995, 7191), (3995, 5391)]