21815606820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{93253}}^1$

素因数の和:93829

約数の個数: 96

約数和(自身を含む): 69936023808

約数和(自身を除く): 48120416988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 557, 1114, 1671, 2228, 2785, 3342, 3899, 5570, 6684, 7798, 8355, 11140, 11697, 15596, 16710, 19495, 23394, 33420, 38990, 46788, 58485, 77980, 93253, 116970, 186506, 233940, 279759, 373012, 466265, 559518, 652771, 932530, 1119036, 1305542, 1398795, 1865060, 1958313, 2611084, 2797590, 3263855, 3916626, 5595180, 6527710, 7833252, 9791565, 13055420, 19583130, 39166260, 51941921, 103883842, 155825763, 207767684, 259709605, 311651526, 363593447, 519419210, 623303052, 727186894, 779128815, 1038838420, 1090780341, 1454373788, 1558257630, 1817967235, 2181560682, 3116515260, 3635934470, 4363121364, 5453901705, 7271868940, 10907803410, 21815606820]

約数ペア:

[(1, 21815606820), (2, 10907803410), (3, 7271868940), (4, 5453901705), (5, 4363121364), (6, 3635934470), (7, 3116515260), (10, 2181560682), (12, 1817967235), (14, 1558257630), (15, 1454373788), (20, 1090780341), (21, 1038838420), (28, 779128815), (30, 727186894), (35, 623303052), (42, 519419210), (60, 363593447), (70, 311651526), (84, 259709605), (105, 207767684), (140, 155825763), (210, 103883842), (420, 51941921), (557, 39166260), (1114, 19583130), (1671, 13055420), (2228, 9791565), (2785, 7833252), (3342, 6527710), (3899, 5595180), (5570, 3916626), (6684, 3263855), (7798, 2797590), (8355, 2611084), (11140, 1958313), (11697, 1865060), (15596, 1398795), (16710, 1305542), (19495, 1119036), (23394, 932530), (33420, 652771), (38990, 559518), (46788, 466265), (58485, 373012), (77980, 279759), (93253, 233940), (116970, 186506)]