21871752

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1289}}^1$

素因数の和:1406

約数の個数: 64

約数和(自身を含む): 63158400

約数和(自身を除く): 41286648

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 101, 168, 202, 303, 404, 606, 707, 808, 1212, 1289, 1414, 2121, 2424, 2578, 2828, 3867, 4242, 5156, 5656, 7734, 8484, 9023, 10312, 15468, 16968, 18046, 27069, 30936, 36092, 54138, 72184, 108276, 130189, 216552, 260378, 390567, 520756, 781134, 911323, 1041512, 1562268, 1822646, 2733969, 3124536, 3645292, 5467938, 7290584, 10935876, 21871752]

約数ペア:

[(1, 21871752), (2, 10935876), (3, 7290584), (4, 5467938), (6, 3645292), (7, 3124536), (8, 2733969), (12, 1822646), (14, 1562268), (21, 1041512), (24, 911323), (28, 781134), (42, 520756), (56, 390567), (84, 260378), (101, 216552), (168, 130189), (202, 108276), (303, 72184), (404, 54138), (606, 36092), (707, 30936), (808, 27069), (1212, 18046), (1289, 16968), (1414, 15468), (2121, 10312), (2424, 9023), (2578, 8484), (2828, 7734), (3867, 5656), (4242, 5156)]