21344752

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:542

約数の個数: 80

約数和(自身を含む): 51246720

約数和(自身を除く): 29901968

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 176, 208, 209, 247, 286, 304, 418, 491, 494, 572, 836, 982, 988, 1144, 1672, 1964, 1976, 2288, 2717, 3344, 3928, 3952, 5401, 5434, 6383, 7856, 9329, 10802, 10868, 12766, 18658, 21604, 21736, 25532, 37316, 43208, 43472, 51064, 70213, 74632, 86416, 102128, 102619, 121277, 140426, 149264, 205238, 242554, 280852, 410476, 485108, 561704, 820952, 970216, 1123408, 1334047, 1641904, 1940432, 2668094, 5336188, 10672376, 21344752]

約数ペア:

[(1, 21344752), (2, 10672376), (4, 5336188), (8, 2668094), (11, 1940432), (13, 1641904), (16, 1334047), (19, 1123408), (22, 970216), (26, 820952), (38, 561704), (44, 485108), (52, 410476), (76, 280852), (88, 242554), (104, 205238), (143, 149264), (152, 140426), (176, 121277), (208, 102619), (209, 102128), (247, 86416), (286, 74632), (304, 70213), (418, 51064), (491, 43472), (494, 43208), (572, 37316), (836, 25532), (982, 21736), (988, 21604), (1144, 18658), (1672, 12766), (1964, 10868), (1976, 10802), (2288, 9329), (2717, 7856), (3344, 6383), (3928, 5434), (3952, 5401)]