21234884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 21101116

約数列:

[1, 2, 4, 11, 22, 41, 44, 79, 82, 149, 158, 164, 298, 316, 451, 596, 869, 902, 1639, 1738, 1804, 3239, 3278, 3476, 6109, 6478, 6556, 11771, 12218, 12956, 23542, 24436, 35629, 47084, 67199, 71258, 129481, 134398, 142516, 258962, 268796, 482611, 517924, 965222, 1930444, 5308721, 10617442, 21234884]

約数ペア:

[(1, 21234884), (2, 10617442), (4, 5308721), (11, 1930444), (22, 965222), (41, 517924), (44, 482611), (79, 268796), (82, 258962), (149, 142516), (158, 134398), (164, 129481), (298, 71258), (316, 67199), (451, 47084), (596, 35629), (869, 24436), (902, 23542), (1639, 12956), (1738, 12218), (1804, 11771), (3239, 6556), (3278, 6478), (3476, 6109)]