21409098921

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1\times {\mathrm{24677}}^1$

素因数の和:25030

約数の個数: 48

約数和(自身を含む): 36218617344

約数和(自身を除く): 14809518423

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 293, 329, 423, 879, 987, 2051, 2637, 2961, 6153, 13771, 18459, 24677, 41313, 74031, 96397, 123939, 172739, 222093, 289191, 518217, 867573, 1159819, 1554651, 3479457, 7230361, 8118733, 10438371, 21691083, 24356199, 50612527, 65073249, 73068597, 151837581, 339826967, 455512743, 1019480901, 2378788769, 3058442703, 7136366307, 21409098921]

約数ペア:

[(1, 21409098921), (3, 7136366307), (7, 3058442703), (9, 2378788769), (21, 1019480901), (47, 455512743), (63, 339826967), (141, 151837581), (293, 73068597), (329, 65073249), (423, 50612527), (879, 24356199), (987, 21691083), (2051, 10438371), (2637, 8118733), (2961, 7230361), (6153, 3479457), (13771, 1554651), (18459, 1159819), (24677, 867573), (41313, 518217), (74031, 289191), (96397, 222093), (123939, 172739)]