21983624

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 47401200

約数和(自身を除く): 25417576

約数列:

[1, 2, 4, 8, 13, 26, 29, 37, 52, 58, 74, 104, 116, 148, 197, 232, 296, 377, 394, 481, 754, 788, 962, 1073, 1508, 1576, 1924, 2146, 2561, 3016, 3848, 4292, 5122, 5713, 7289, 8584, 10244, 11426, 13949, 14578, 20488, 22852, 27898, 29156, 45704, 55796, 58312, 74269, 94757, 111592, 148538, 189514, 211381, 297076, 379028, 422762, 594152, 758056, 845524, 1691048, 2747953, 5495906, 10991812, 21983624]

約数ペア:

[(1, 21983624), (2, 10991812), (4, 5495906), (8, 2747953), (13, 1691048), (26, 845524), (29, 758056), (37, 594152), (52, 422762), (58, 379028), (74, 297076), (104, 211381), (116, 189514), (148, 148538), (197, 111592), (232, 94757), (296, 74269), (377, 58312), (394, 55796), (481, 45704), (754, 29156), (788, 27898), (962, 22852), (1073, 20488), (1508, 14578), (1576, 13949), (1924, 11426), (2146, 10244), (2561, 8584), (3016, 7289), (3848, 5713), (4292, 5122)]