21831516

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2113}}^1$

素因数の和:2171

約数の個数: 72

約数和(自身を含む): 64637664

約数和(自身を除く): 42806148

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 63, 82, 84, 123, 126, 164, 246, 252, 287, 369, 492, 574, 738, 861, 1148, 1476, 1722, 2113, 2583, 3444, 4226, 5166, 6339, 8452, 10332, 12678, 14791, 19017, 25356, 29582, 38034, 44373, 59164, 76068, 86633, 88746, 133119, 173266, 177492, 259899, 266238, 346532, 519798, 532476, 606431, 779697, 1039596, 1212862, 1559394, 1819293, 2425724, 3118788, 3638586, 5457879, 7277172, 10915758, 21831516]

約数ペア:

[(1, 21831516), (2, 10915758), (3, 7277172), (4, 5457879), (6, 3638586), (7, 3118788), (9, 2425724), (12, 1819293), (14, 1559394), (18, 1212862), (21, 1039596), (28, 779697), (36, 606431), (41, 532476), (42, 519798), (63, 346532), (82, 266238), (84, 259899), (123, 177492), (126, 173266), (164, 133119), (246, 88746), (252, 86633), (287, 76068), (369, 59164), (492, 44373), (574, 38034), (738, 29582), (861, 25356), (1148, 19017), (1476, 14791), (1722, 12678), (2113, 10332), (2583, 8452), (3444, 6339), (4226, 5166)]