21768948

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 58496256

約数和(自身を除く): 36727308

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 61, 69, 92, 122, 138, 183, 207, 244, 276, 366, 414, 431, 549, 732, 828, 862, 1098, 1293, 1403, 1724, 2196, 2586, 2806, 3879, 4209, 5172, 5612, 7758, 8418, 9913, 12627, 15516, 16836, 19826, 25254, 26291, 29739, 39652, 50508, 52582, 59478, 78873, 89217, 105164, 118956, 157746, 178434, 236619, 315492, 356868, 473238, 604693, 946476, 1209386, 1814079, 2418772, 3628158, 5442237, 7256316, 10884474, 21768948]

約数ペア:

[(1, 21768948), (2, 10884474), (3, 7256316), (4, 5442237), (6, 3628158), (9, 2418772), (12, 1814079), (18, 1209386), (23, 946476), (36, 604693), (46, 473238), (61, 356868), (69, 315492), (92, 236619), (122, 178434), (138, 157746), (183, 118956), (207, 105164), (244, 89217), (276, 78873), (366, 59478), (414, 52582), (431, 50508), (549, 39652), (732, 29739), (828, 26291), (862, 25254), (1098, 19826), (1293, 16836), (1403, 15516), (1724, 12627), (2196, 9913), (2586, 8418), (2806, 7758), (3879, 5612), (4209, 5172)]