21900216

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4129}}^1$

素因数の和:4168

約数の個数: 64

約数和(自身を含む): 62445600

約数和(自身を除く): 40545384

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 204, 221, 312, 408, 442, 663, 884, 1326, 1768, 2652, 4129, 5304, 8258, 12387, 16516, 24774, 33032, 49548, 53677, 70193, 99096, 107354, 140386, 161031, 210579, 214708, 280772, 322062, 421158, 429416, 561544, 644124, 842316, 912509, 1288248, 1684632, 1825018, 2737527, 3650036, 5475054, 7300072, 10950108, 21900216]

約数ペア:

[(1, 21900216), (2, 10950108), (3, 7300072), (4, 5475054), (6, 3650036), (8, 2737527), (12, 1825018), (13, 1684632), (17, 1288248), (24, 912509), (26, 842316), (34, 644124), (39, 561544), (51, 429416), (52, 421158), (68, 322062), (78, 280772), (102, 214708), (104, 210579), (136, 161031), (156, 140386), (204, 107354), (221, 99096), (312, 70193), (408, 53677), (442, 49548), (663, 33032), (884, 24774), (1326, 16516), (1768, 12387), (2652, 8258), (4129, 5304)]