21034851860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{946663}}^1$

素因数の和:946784

約数の個数: 48

約数和(自身を含む): 48666102912

約数和(自身を除く): 27631251052

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 2020, 2222, 4444, 5555, 11110, 22220, 946663, 1893326, 3786652, 4733315, 9466630, 10413293, 18933260, 20826586, 41653172, 52066465, 95612963, 104132930, 191225926, 208265860, 382451852, 478064815, 956129630, 1051742593, 1912259260, 2103485186, 4206970372, 5258712965, 10517425930, 21034851860]

約数ペア:

[(1, 21034851860), (2, 10517425930), (4, 5258712965), (5, 4206970372), (10, 2103485186), (11, 1912259260), (20, 1051742593), (22, 956129630), (44, 478064815), (55, 382451852), (101, 208265860), (110, 191225926), (202, 104132930), (220, 95612963), (404, 52066465), (505, 41653172), (1010, 20826586), (1111, 18933260), (2020, 10413293), (2222, 9466630), (4444, 4733315), (5555, 3786652), (11110, 1893326), (22220, 946663)]