21617370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:300

約数の個数: 96

約数和(自身を含む): 60652800

約数和(自身を除く): 39035430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 71, 85, 90, 102, 142, 153, 170, 199, 213, 255, 306, 355, 398, 426, 510, 597, 639, 710, 765, 995, 1065, 1194, 1207, 1278, 1530, 1791, 1990, 2130, 2414, 2985, 3195, 3383, 3582, 3621, 5970, 6035, 6390, 6766, 7242, 8955, 10149, 10863, 12070, 14129, 16915, 17910, 18105, 20298, 21726, 28258, 30447, 33830, 36210, 42387, 50745, 54315, 60894, 70645, 84774, 101490, 108630, 127161, 141290, 152235, 211935, 240193, 254322, 304470, 423870, 480386, 635805, 720579, 1200965, 1271610, 1441158, 2161737, 2401930, 3602895, 4323474, 7205790, 10808685, 21617370]

約数ペア:

[(1, 21617370), (2, 10808685), (3, 7205790), (5, 4323474), (6, 3602895), (9, 2401930), (10, 2161737), (15, 1441158), (17, 1271610), (18, 1200965), (30, 720579), (34, 635805), (45, 480386), (51, 423870), (71, 304470), (85, 254322), (90, 240193), (102, 211935), (142, 152235), (153, 141290), (170, 127161), (199, 108630), (213, 101490), (255, 84774), (306, 70645), (355, 60894), (398, 54315), (426, 50745), (510, 42387), (597, 36210), (639, 33830), (710, 30447), (765, 28258), (995, 21726), (1065, 20298), (1194, 18105), (1207, 17910), (1278, 16915), (1530, 14129), (1791, 12070), (1990, 10863), (2130, 10149), (2414, 8955), (2985, 7242), (3195, 6766), (3383, 6390), (3582, 6035), (3621, 5970)]