21265470

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 62052480

約数和(自身を除く): 40787010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 41, 45, 51, 54, 82, 85, 90, 102, 113, 123, 135, 153, 170, 205, 226, 246, 255, 270, 306, 339, 369, 410, 459, 510, 565, 615, 678, 697, 738, 765, 918, 1017, 1107, 1130, 1230, 1394, 1530, 1695, 1845, 1921, 2034, 2091, 2214, 2295, 3051, 3390, 3485, 3690, 3842, 4182, 4590, 4633, 5085, 5535, 5763, 6102, 6273, 6970, 9266, 9605, 10170, 10455, 11070, 11526, 12546, 13899, 15255, 17289, 18819, 19210, 20910, 23165, 27798, 28815, 30510, 31365, 34578, 37638, 41697, 46330, 51867, 57630, 62730, 69495, 78761, 83394, 86445, 94095, 103734, 125091, 138990, 157522, 172890, 188190, 208485, 236283, 250182, 259335, 393805, 416970, 472566, 518670, 625455, 708849, 787610, 1181415, 1250910, 1417698, 2126547, 2362830, 3544245, 4253094, 7088490, 10632735, 21265470]

約数ペア:

[(1, 21265470), (2, 10632735), (3, 7088490), (5, 4253094), (6, 3544245), (9, 2362830), (10, 2126547), (15, 1417698), (17, 1250910), (18, 1181415), (27, 787610), (30, 708849), (34, 625455), (41, 518670), (45, 472566), (51, 416970), (54, 393805), (82, 259335), (85, 250182), (90, 236283), (102, 208485), (113, 188190), (123, 172890), (135, 157522), (153, 138990), (170, 125091), (205, 103734), (226, 94095), (246, 86445), (255, 83394), (270, 78761), (306, 69495), (339, 62730), (369, 57630), (410, 51867), (459, 46330), (510, 41697), (565, 37638), (615, 34578), (678, 31365), (697, 30510), (738, 28815), (765, 27798), (918, 23165), (1017, 20910), (1107, 19210), (1130, 18819), (1230, 17289), (1394, 15255), (1530, 13899), (1695, 12546), (1845, 11526), (1921, 11070), (2034, 10455), (2091, 10170), (2214, 9605), (2295, 9266), (3051, 6970), (3390, 6273), (3485, 6102), (3690, 5763), (3842, 5535), (4182, 5085), (4590, 4633)]