20903806

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{911}}^1$

素因数の和:1080

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 18494594

約数列:

[1, 2, 7, 11, 14, 22, 77, 149, 154, 298, 911, 1043, 1639, 1822, 2086, 3278, 6377, 10021, 11473, 12754, 20042, 22946, 70147, 135739, 140294, 271478, 950173, 1493129, 1900346, 2986258, 10451903, 20903806]

約数ペア:

[(1, 20903806), (2, 10451903), (7, 2986258), (11, 1900346), (14, 1493129), (22, 950173), (77, 271478), (149, 140294), (154, 135739), (298, 70147), (911, 22946), (1043, 20042), (1639, 12754), (1822, 11473), (2086, 10021), (3278, 6377)]