21000852453

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1321}}^1\times {\mathrm{11299}}^1$

素因数の和:12697

約数の個数: 32

約数和(自身を含む): 32506393600

約数和(自身を除く): 11505541147

約数列:

[1, 3, 7, 21, 67, 201, 469, 1321, 1407, 3963, 9247, 11299, 27741, 33897, 79093, 88507, 237279, 265521, 619549, 757033, 1858647, 2271099, 5299231, 14925979, 15897693, 44777937, 104481853, 313445559, 1000040593, 3000121779, 7000284151, 21000852453]

約数ペア:

[(1, 21000852453), (3, 7000284151), (7, 3000121779), (21, 1000040593), (67, 313445559), (201, 104481853), (469, 44777937), (1321, 15897693), (1407, 14925979), (3963, 5299231), (9247, 2271099), (11299, 1858647), (27741, 757033), (33897, 619549), (79093, 265521), (88507, 237279)]