20895138

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1213}}^1$

素因数の和:1264

約数の個数: 64

約数和(自身を含む): 52444800

約数和(自身を除く): 31549662

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 29, 33, 54, 58, 66, 87, 99, 174, 198, 261, 297, 319, 522, 594, 638, 783, 957, 1213, 1566, 1914, 2426, 2871, 3639, 5742, 7278, 8613, 10917, 13343, 17226, 21834, 26686, 32751, 35177, 40029, 65502, 70354, 80058, 105531, 120087, 211062, 240174, 316593, 360261, 386947, 633186, 720522, 773894, 949779, 1160841, 1899558, 2321682, 3482523, 6965046, 10447569, 20895138]

約数ペア:

[(1, 20895138), (2, 10447569), (3, 6965046), (6, 3482523), (9, 2321682), (11, 1899558), (18, 1160841), (22, 949779), (27, 773894), (29, 720522), (33, 633186), (54, 386947), (58, 360261), (66, 316593), (87, 240174), (99, 211062), (174, 120087), (198, 105531), (261, 80058), (297, 70354), (319, 65502), (522, 40029), (594, 35177), (638, 32751), (783, 26686), (957, 21834), (1213, 17226), (1566, 13343), (1914, 10917), (2426, 8613), (2871, 7278), (3639, 5742)]