20856618

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{479}}^1$

素因数の和:587

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 26317782

約数列:

[1, 2, 3, 6, 9, 18, 41, 59, 82, 118, 123, 177, 246, 354, 369, 479, 531, 738, 958, 1062, 1437, 2419, 2874, 4311, 4838, 7257, 8622, 14514, 19639, 21771, 28261, 39278, 43542, 56522, 58917, 84783, 117834, 169566, 176751, 254349, 353502, 508698, 1158701, 2317402, 3476103, 6952206, 10428309, 20856618]

約数ペア:

[(1, 20856618), (2, 10428309), (3, 6952206), (6, 3476103), (9, 2317402), (18, 1158701), (41, 508698), (59, 353502), (82, 254349), (118, 176751), (123, 169566), (177, 117834), (246, 84783), (354, 58917), (369, 56522), (479, 43542), (531, 39278), (738, 28261), (958, 21771), (1062, 19639), (1437, 14514), (2419, 8622), (2874, 7257), (4311, 4838)]