21258936

素因数分解:

$2^3\times 3^4\times {\mathrm{53}}^1\times {\mathrm{619}}^1$

素因数の和:690

約数の個数: 80

約数和(自身を含む): 60766200

約数和(自身を除く): 39507264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 53, 54, 72, 81, 106, 108, 159, 162, 212, 216, 318, 324, 424, 477, 619, 636, 648, 954, 1238, 1272, 1431, 1857, 1908, 2476, 2862, 3714, 3816, 4293, 4952, 5571, 5724, 7428, 8586, 11142, 11448, 14856, 16713, 17172, 22284, 32807, 33426, 34344, 44568, 50139, 65614, 66852, 98421, 100278, 131228, 133704, 196842, 200556, 262456, 295263, 393684, 401112, 590526, 787368, 885789, 1181052, 1771578, 2362104, 2657367, 3543156, 5314734, 7086312, 10629468, 21258936]

約数ペア:

[(1, 21258936), (2, 10629468), (3, 7086312), (4, 5314734), (6, 3543156), (8, 2657367), (9, 2362104), (12, 1771578), (18, 1181052), (24, 885789), (27, 787368), (36, 590526), (53, 401112), (54, 393684), (72, 295263), (81, 262456), (106, 200556), (108, 196842), (159, 133704), (162, 131228), (212, 100278), (216, 98421), (318, 66852), (324, 65614), (424, 50139), (477, 44568), (619, 34344), (636, 33426), (648, 32807), (954, 22284), (1238, 17172), (1272, 16713), (1431, 14856), (1857, 11448), (1908, 11142), (2476, 8586), (2862, 7428), (3714, 5724), (3816, 5571), (4293, 4952)]