21644868

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:433

約数の個数: 72

約数和(自身を含む): 59409504

約数和(自身を除く): 37764636

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 131, 147, 196, 262, 281, 294, 393, 524, 562, 588, 786, 843, 917, 1124, 1572, 1686, 1834, 1967, 2751, 3372, 3668, 3934, 5502, 5901, 6419, 7868, 11004, 11802, 12838, 13769, 19257, 23604, 25676, 27538, 36811, 38514, 41307, 55076, 73622, 77028, 82614, 110433, 147244, 165228, 220866, 257677, 441732, 515354, 773031, 1030708, 1546062, 1803739, 3092124, 3607478, 5411217, 7214956, 10822434, 21644868]

約数ペア:

[(1, 21644868), (2, 10822434), (3, 7214956), (4, 5411217), (6, 3607478), (7, 3092124), (12, 1803739), (14, 1546062), (21, 1030708), (28, 773031), (42, 515354), (49, 441732), (84, 257677), (98, 220866), (131, 165228), (147, 147244), (196, 110433), (262, 82614), (281, 77028), (294, 73622), (393, 55076), (524, 41307), (562, 38514), (588, 36811), (786, 27538), (843, 25676), (917, 23604), (1124, 19257), (1572, 13769), (1686, 12838), (1834, 11802), (1967, 11004), (2751, 7868), (3372, 6419), (3668, 5901), (3934, 5502)]