21000455308

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1\times {\mathrm{22003}}^1$

素因数の和:22486

約数の個数: 48

約数和(自身を含む): 42585661440

約数和(自身を除く): 21585206132

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 383, 623, 766, 1246, 1532, 2492, 2681, 5362, 10724, 22003, 34087, 44006, 68174, 88012, 136348, 154021, 238609, 308042, 477218, 616084, 954436, 1958267, 3916534, 7833068, 8427149, 13707869, 16854298, 27415738, 33708596, 54831476, 58990043, 117980086, 235960172, 750016261, 1500032522, 3000065044, 5250113827, 10500227654, 21000455308]

約数ペア:

[(1, 21000455308), (2, 10500227654), (4, 5250113827), (7, 3000065044), (14, 1500032522), (28, 750016261), (89, 235960172), (178, 117980086), (356, 58990043), (383, 54831476), (623, 33708596), (766, 27415738), (1246, 16854298), (1532, 13707869), (2492, 8427149), (2681, 7833068), (5362, 3916534), (10724, 1958267), (22003, 954436), (34087, 616084), (44006, 477218), (68174, 308042), (88012, 238609), (136348, 154021)]