21452520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^2$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 68450400

約数和(自身を除く): 46997880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 97, 114, 120, 152, 190, 194, 228, 285, 291, 380, 388, 456, 485, 570, 582, 760, 776, 970, 1140, 1164, 1455, 1843, 1940, 2280, 2328, 2910, 3686, 3880, 5529, 5820, 7372, 9215, 9409, 11058, 11640, 14744, 18430, 18818, 22116, 27645, 28227, 36860, 37636, 44232, 47045, 55290, 56454, 73720, 75272, 94090, 110580, 112908, 141135, 178771, 188180, 221160, 225816, 282270, 357542, 376360, 536313, 564540, 715084, 893855, 1072626, 1129080, 1430168, 1787710, 2145252, 2681565, 3575420, 4290504, 5363130, 7150840, 10726260, 21452520]

約数ペア:

[(1, 21452520), (2, 10726260), (3, 7150840), (4, 5363130), (5, 4290504), (6, 3575420), (8, 2681565), (10, 2145252), (12, 1787710), (15, 1430168), (19, 1129080), (20, 1072626), (24, 893855), (30, 715084), (38, 564540), (40, 536313), (57, 376360), (60, 357542), (76, 282270), (95, 225816), (97, 221160), (114, 188180), (120, 178771), (152, 141135), (190, 112908), (194, 110580), (228, 94090), (285, 75272), (291, 73720), (380, 56454), (388, 55290), (456, 47045), (485, 44232), (570, 37636), (582, 36860), (760, 28227), (776, 27645), (970, 22116), (1140, 18818), (1164, 18430), (1455, 14744), (1843, 11640), (1940, 11058), (2280, 9409), (2328, 9215), (2910, 7372), (3686, 5820), (3880, 5529)]