21287173260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{397297}}^1$

素因数の和:397375

約数の個数: 96

約数和(自身を含む): 64076221440

約数和(自身を除く): 42789048180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 47, 57, 60, 76, 94, 95, 114, 141, 188, 190, 228, 235, 282, 285, 380, 470, 564, 570, 705, 893, 940, 1140, 1410, 1786, 2679, 2820, 3572, 4465, 5358, 8930, 10716, 13395, 17860, 26790, 53580, 397297, 794594, 1191891, 1589188, 1986485, 2383782, 3972970, 4767564, 5959455, 7548643, 7945940, 11918910, 15097286, 18672959, 22645929, 23837820, 30194572, 37345918, 37743215, 45291858, 56018877, 74691836, 75486430, 90583716, 93364795, 112037754, 113229645, 150972860, 186729590, 224075508, 226459290, 280094385, 354786221, 373459180, 452918580, 560188770, 709572442, 1064358663, 1120377540, 1419144884, 1773931105, 2128717326, 3547862210, 4257434652, 5321793315, 7095724420, 10643586630, 21287173260]

約数ペア:

[(1, 21287173260), (2, 10643586630), (3, 7095724420), (4, 5321793315), (5, 4257434652), (6, 3547862210), (10, 2128717326), (12, 1773931105), (15, 1419144884), (19, 1120377540), (20, 1064358663), (30, 709572442), (38, 560188770), (47, 452918580), (57, 373459180), (60, 354786221), (76, 280094385), (94, 226459290), (95, 224075508), (114, 186729590), (141, 150972860), (188, 113229645), (190, 112037754), (228, 93364795), (235, 90583716), (282, 75486430), (285, 74691836), (380, 56018877), (470, 45291858), (564, 37743215), (570, 37345918), (705, 30194572), (893, 23837820), (940, 22645929), (1140, 18672959), (1410, 15097286), (1786, 11918910), (2679, 7945940), (2820, 7548643), (3572, 5959455), (4465, 4767564), (5358, 3972970), (8930, 2383782), (10716, 1986485), (13395, 1589188), (17860, 1191891), (26790, 794594), (53580, 397297)]