21807179912

素因数分解:

$2^3\times 7^3\times {\mathrm{569}}^1\times {\mathrm{13967}}^1$

素因数の和:14563

約数の個数: 64

約数和(自身を含む): 47770560000

約数和(自身を除く): 25963380088

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 569, 686, 1138, 1372, 2276, 2744, 3983, 4552, 7966, 13967, 15932, 27881, 27934, 31864, 55762, 55868, 97769, 111524, 111736, 195167, 195538, 223048, 390334, 391076, 684383, 780668, 782152, 1368766, 1561336, 2737532, 4790681, 5475064, 7947223, 9581362, 15894446, 19162724, 31788892, 38325448, 55630561, 63577784, 111261122, 222522244, 389413927, 445044488, 778827854, 1557655708, 2725897489, 3115311416, 5451794978, 10903589956, 21807179912]

約数ペア:

[(1, 21807179912), (2, 10903589956), (4, 5451794978), (7, 3115311416), (8, 2725897489), (14, 1557655708), (28, 778827854), (49, 445044488), (56, 389413927), (98, 222522244), (196, 111261122), (343, 63577784), (392, 55630561), (569, 38325448), (686, 31788892), (1138, 19162724), (1372, 15894446), (2276, 9581362), (2744, 7947223), (3983, 5475064), (4552, 4790681), (7966, 2737532), (13967, 1561336), (15932, 1368766), (27881, 782152), (27934, 780668), (31864, 684383), (55762, 391076), (55868, 390334), (97769, 223048), (111524, 195538), (111736, 195167)]