21391038

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1$

素因数の和:1033

約数の個数: 48

約数和(自身を含む): 49111920

約数和(自身を除く): 27720882

約数列:

[1, 2, 3, 6, 9, 18, 29, 43, 58, 86, 87, 129, 174, 258, 261, 387, 522, 774, 953, 1247, 1906, 2494, 2859, 3741, 5718, 7482, 8577, 11223, 17154, 22446, 27637, 40979, 55274, 81958, 82911, 122937, 165822, 245874, 248733, 368811, 497466, 737622, 1188391, 2376782, 3565173, 7130346, 10695519, 21391038]

約数ペア:

[(1, 21391038), (2, 10695519), (3, 7130346), (6, 3565173), (9, 2376782), (18, 1188391), (29, 737622), (43, 497466), (58, 368811), (86, 248733), (87, 245874), (129, 165822), (174, 122937), (258, 82911), (261, 81958), (387, 55274), (522, 40979), (774, 27637), (953, 22446), (1247, 17154), (1906, 11223), (2494, 8577), (2859, 7482), (3741, 5718)]