201421451

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^2$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 276007680

約数和(自身を除く): 74586229

約数列:

[1, 7, 11, 19, 37, 61, 77, 133, 209, 259, 407, 427, 671, 703, 1159, 1463, 2257, 2849, 3721, 4697, 4921, 7733, 8113, 12749, 15799, 24827, 26047, 40931, 42883, 54131, 70699, 89243, 137677, 173789, 286517, 300181, 471713, 494893, 777689, 963739, 1514447, 2615863, 3301991, 5443823, 10601129, 18311041, 28774493, 201421451]

約数ペア:

[(1, 201421451), (7, 28774493), (11, 18311041), (19, 10601129), (37, 5443823), (61, 3301991), (77, 2615863), (133, 1514447), (209, 963739), (259, 777689), (407, 494893), (427, 471713), (671, 300181), (703, 286517), (1159, 173789), (1463, 137677), (2257, 89243), (2849, 70699), (3721, 54131), (4697, 42883), (4921, 40931), (7733, 26047), (8113, 24827), (12749, 15799)]