21695784

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:303

約数の個数: 96

約数和(自身を含む): 61797120

約数和(自身を除く): 40101336

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 31, 33, 44, 62, 66, 88, 93, 121, 124, 132, 186, 241, 242, 248, 264, 341, 363, 372, 482, 484, 682, 723, 726, 744, 964, 968, 1023, 1364, 1446, 1452, 1928, 2046, 2651, 2728, 2892, 2904, 3751, 4092, 5302, 5784, 7471, 7502, 7953, 8184, 10604, 11253, 14942, 15004, 15906, 21208, 22413, 22506, 29161, 29884, 30008, 31812, 44826, 45012, 58322, 59768, 63624, 82181, 87483, 89652, 90024, 116644, 164362, 174966, 179304, 233288, 246543, 328724, 349932, 493086, 657448, 699864, 903991, 986172, 1807982, 1972344, 2711973, 3615964, 5423946, 7231928, 10847892, 21695784]

約数ペア:

[(1, 21695784), (2, 10847892), (3, 7231928), (4, 5423946), (6, 3615964), (8, 2711973), (11, 1972344), (12, 1807982), (22, 986172), (24, 903991), (31, 699864), (33, 657448), (44, 493086), (62, 349932), (66, 328724), (88, 246543), (93, 233288), (121, 179304), (124, 174966), (132, 164362), (186, 116644), (241, 90024), (242, 89652), (248, 87483), (264, 82181), (341, 63624), (363, 59768), (372, 58322), (482, 45012), (484, 44826), (682, 31812), (723, 30008), (726, 29884), (744, 29161), (964, 22506), (968, 22413), (1023, 21208), (1364, 15906), (1446, 15004), (1452, 14942), (1928, 11253), (2046, 10604), (2651, 8184), (2728, 7953), (2892, 7502), (2904, 7471), (3751, 5784), (4092, 5302)]