21757968

素因数分解:

$2^4\times 3^2\times {\mathrm{61}}^1\times {\mathrm{2477}}^1$

素因数の和:2552

約数の個数: 60

約数和(自身を含む): 61915308

約数和(自身を除く): 40157340

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 61, 72, 122, 144, 183, 244, 366, 488, 549, 732, 976, 1098, 1464, 2196, 2477, 2928, 4392, 4954, 7431, 8784, 9908, 14862, 19816, 22293, 29724, 39632, 44586, 59448, 89172, 118896, 151097, 178344, 302194, 356688, 453291, 604388, 906582, 1208776, 1359873, 1813164, 2417552, 2719746, 3626328, 5439492, 7252656, 10878984, 21757968]

約数ペア:

[(1, 21757968), (2, 10878984), (3, 7252656), (4, 5439492), (6, 3626328), (8, 2719746), (9, 2417552), (12, 1813164), (16, 1359873), (18, 1208776), (24, 906582), (36, 604388), (48, 453291), (61, 356688), (72, 302194), (122, 178344), (144, 151097), (183, 118896), (244, 89172), (366, 59448), (488, 44586), (549, 39632), (732, 29724), (976, 22293), (1098, 19816), (1464, 14862), (2196, 9908), (2477, 8784), (2928, 7431), (4392, 4954)]