21768516

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7853}}^1$

素因数の和:7881

約数の個数: 72

約数和(自身を含む): 68612544

約数和(自身を除く): 46844028

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 462, 693, 924, 1386, 2772, 7853, 15706, 23559, 31412, 47118, 54971, 70677, 86383, 94236, 109942, 141354, 164913, 172766, 219884, 259149, 282708, 329826, 345532, 494739, 518298, 604681, 659652, 777447, 989478, 1036596, 1209362, 1554894, 1814043, 1978956, 2418724, 3109788, 3628086, 5442129, 7256172, 10884258, 21768516]

約数ペア:

[(1, 21768516), (2, 10884258), (3, 7256172), (4, 5442129), (6, 3628086), (7, 3109788), (9, 2418724), (11, 1978956), (12, 1814043), (14, 1554894), (18, 1209362), (21, 1036596), (22, 989478), (28, 777447), (33, 659652), (36, 604681), (42, 518298), (44, 494739), (63, 345532), (66, 329826), (77, 282708), (84, 259149), (99, 219884), (126, 172766), (132, 164913), (154, 141354), (198, 109942), (231, 94236), (252, 86383), (308, 70677), (396, 54971), (462, 47118), (693, 31412), (924, 23559), (1386, 15706), (2772, 7853)]