21061320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{25073}}^1$

素因数の和:25094

約数の個数: 64

約数和(自身を含む): 72213120

約数和(自身を除く): 51151800

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, 25073, 50146, 75219, 100292, 125365, 150438, 175511, 200584, 250730, 300876, 351022, 376095, 501460, 526533, 601752, 702044, 752190, 877555, 1002920, 1053066, 1404088, 1504380, 1755110, 2106132, 2632665, 3008760, 3510220, 4212264, 5265330, 7020440, 10530660, 21061320]

約数ペア:

[(1, 21061320), (2, 10530660), (3, 7020440), (4, 5265330), (5, 4212264), (6, 3510220), (7, 3008760), (8, 2632665), (10, 2106132), (12, 1755110), (14, 1504380), (15, 1404088), (20, 1053066), (21, 1002920), (24, 877555), (28, 752190), (30, 702044), (35, 601752), (40, 526533), (42, 501460), (56, 376095), (60, 351022), (70, 300876), (84, 250730), (105, 200584), (120, 175511), (140, 150438), (168, 125365), (210, 100292), (280, 75219), (420, 50146), (840, 25073)]