20512942516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{809}}^1\times {\mathrm{1741}}^1$

素因数の和:2896

約数の個数: 48

約数和(自身を含む): 39350525760

約数和(自身を除く): 18837583244

約数列:

[1, 2, 4, 11, 22, 44, 331, 662, 809, 1324, 1618, 1741, 3236, 3482, 3641, 6964, 7282, 8899, 14564, 17798, 19151, 35596, 38302, 76604, 267779, 535558, 576271, 1071116, 1152542, 1408469, 2305084, 2816938, 2945569, 5633876, 5891138, 6338981, 11782276, 12677962, 15493159, 25355924, 30986318, 61972636, 466203239, 932406478, 1864812956, 5128235629, 10256471258, 20512942516]

約数ペア:

[(1, 20512942516), (2, 10256471258), (4, 5128235629), (11, 1864812956), (22, 932406478), (44, 466203239), (331, 61972636), (662, 30986318), (809, 25355924), (1324, 15493159), (1618, 12677962), (1741, 11782276), (3236, 6338981), (3482, 5891138), (3641, 5633876), (6964, 2945569), (7282, 2816938), (8899, 2305084), (14564, 1408469), (17798, 1152542), (19151, 1071116), (35596, 576271), (38302, 535558), (76604, 267779)]