21093516

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 56504448

約数和(自身を除く): 35410932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 41, 62, 82, 93, 123, 124, 164, 186, 246, 279, 369, 372, 461, 492, 558, 738, 922, 1116, 1271, 1383, 1476, 1844, 2542, 2766, 3813, 4149, 5084, 5532, 7626, 8298, 11439, 14291, 15252, 16596, 18901, 22878, 28582, 37802, 42873, 45756, 56703, 57164, 75604, 85746, 113406, 128619, 170109, 171492, 226812, 257238, 340218, 514476, 585931, 680436, 1171862, 1757793, 2343724, 3515586, 5273379, 7031172, 10546758, 21093516]

約数ペア:

[(1, 21093516), (2, 10546758), (3, 7031172), (4, 5273379), (6, 3515586), (9, 2343724), (12, 1757793), (18, 1171862), (31, 680436), (36, 585931), (41, 514476), (62, 340218), (82, 257238), (93, 226812), (123, 171492), (124, 170109), (164, 128619), (186, 113406), (246, 85746), (279, 75604), (369, 57164), (372, 56703), (461, 45756), (492, 42873), (558, 37802), (738, 28582), (922, 22878), (1116, 18901), (1271, 16596), (1383, 15252), (1476, 14291), (1844, 11439), (2542, 8298), (2766, 7626), (3813, 5532), (4149, 5084)]