211420979

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{383}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 270729216

約数和(自身を除く): 59308237

約数列:

[1, 7, 11, 67, 77, 107, 383, 469, 737, 749, 1177, 2681, 4213, 5159, 7169, 8239, 25661, 29491, 40981, 50183, 78859, 179627, 282271, 286867, 450791, 552013, 1975897, 2745727, 3155537, 19220089, 30202997, 211420979]

約数ペア:

[(1, 211420979), (7, 30202997), (11, 19220089), (67, 3155537), (77, 2745727), (107, 1975897), (383, 552013), (469, 450791), (737, 286867), (749, 282271), (1177, 179627), (2681, 78859), (4213, 50183), (5159, 40981), (7169, 29491), (8239, 25661)]