21313320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{25373}}^1$

素因数の和:25394

約数の個数: 64

約数和(自身を含む): 73077120

約数和(自身を除く): 51763800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 25373, 50746, 76119, 101492, 126865, 152238, 177611, 202984, 253730, 304476, 355222, 380595, 507460, 532833, 608952, 710444, 761190, 888055, 1014920, 1065666, 1420888, 1522380, 1776110, 2131332, 2664165, 3044760, 3552220, 4262664, 5328330, 7104440, 10656660, 21313320]

約数ペア:

[(1, 21313320), (2, 10656660), (3, 7104440), (4, 5328330), (5, 4262664), (6, 3552220), (7, 3044760), (8, 2664165), (10, 2131332), (12, 1776110), (14, 1522380), (15, 1420888), (20, 1065666), (21, 1014920), (24, 888055), (28, 761190), (30, 710444), (35, 608952), (40, 532833), (42, 507460), (56, 380595), (60, 355222), (70, 304476), (84, 253730), (105, 202984), (120, 177611), (140, 152238), (168, 126865), (210, 101492), (280, 76119), (420, 50746), (840, 25373)]