20973470

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1861}}^1$

素因数の和:1905

約数の個数: 48

約数和(自身を含む): 45849888

約数和(自身を除く): 24876418

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 98, 115, 161, 230, 245, 322, 490, 805, 1127, 1610, 1861, 2254, 3722, 5635, 9305, 11270, 13027, 18610, 26054, 42803, 65135, 85606, 91189, 130270, 182378, 214015, 299621, 428030, 455945, 599242, 911890, 1498105, 2097347, 2996210, 4194694, 10486735, 20973470]

約数ペア:

[(1, 20973470), (2, 10486735), (5, 4194694), (7, 2996210), (10, 2097347), (14, 1498105), (23, 911890), (35, 599242), (46, 455945), (49, 428030), (70, 299621), (98, 214015), (115, 182378), (161, 130270), (230, 91189), (245, 85606), (322, 65135), (490, 42803), (805, 26054), (1127, 18610), (1610, 13027), (1861, 11270), (2254, 9305), (3722, 5635)]