21996324

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{457}}^1$

素因数の和:665

約数の個数: 72

約数和(自身を含む): 64017408

約数和(自身を除く): 42021084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 191, 252, 382, 457, 573, 764, 914, 1146, 1337, 1371, 1719, 1828, 2292, 2674, 2742, 3199, 3438, 4011, 4113, 5348, 5484, 6398, 6876, 8022, 8226, 9597, 12033, 12796, 16044, 16452, 19194, 24066, 28791, 38388, 48132, 57582, 87287, 115164, 174574, 261861, 349148, 523722, 611009, 785583, 1047444, 1222018, 1571166, 1833027, 2444036, 3142332, 3666054, 5499081, 7332108, 10998162, 21996324]

約数ペア:

[(1, 21996324), (2, 10998162), (3, 7332108), (4, 5499081), (6, 3666054), (7, 3142332), (9, 2444036), (12, 1833027), (14, 1571166), (18, 1222018), (21, 1047444), (28, 785583), (36, 611009), (42, 523722), (63, 349148), (84, 261861), (126, 174574), (191, 115164), (252, 87287), (382, 57582), (457, 48132), (573, 38388), (764, 28791), (914, 24066), (1146, 19194), (1337, 16452), (1371, 16044), (1719, 12796), (1828, 12033), (2292, 9597), (2674, 8226), (2742, 8022), (3199, 6876), (3438, 6398), (4011, 5484), (4113, 5348)]