21387300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{6481}}^1$

素因数の和:6509

約数の個数: 72

約数和(自身を含む): 67516512

約数和(自身を除く): 46129212

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 25, 30, 33, 44, 50, 55, 60, 66, 75, 100, 110, 132, 150, 165, 220, 275, 300, 330, 550, 660, 825, 1100, 1650, 3300, 6481, 12962, 19443, 25924, 32405, 38886, 64810, 71291, 77772, 97215, 129620, 142582, 162025, 194430, 213873, 285164, 324050, 356455, 388860, 427746, 486075, 648100, 712910, 855492, 972150, 1069365, 1425820, 1782275, 1944300, 2138730, 3564550, 4277460, 5346825, 7129100, 10693650, 21387300]

約数ペア:

[(1, 21387300), (2, 10693650), (3, 7129100), (4, 5346825), (5, 4277460), (6, 3564550), (10, 2138730), (11, 1944300), (12, 1782275), (15, 1425820), (20, 1069365), (22, 972150), (25, 855492), (30, 712910), (33, 648100), (44, 486075), (50, 427746), (55, 388860), (60, 356455), (66, 324050), (75, 285164), (100, 213873), (110, 194430), (132, 162025), (150, 142582), (165, 129620), (220, 97215), (275, 77772), (300, 71291), (330, 64810), (550, 38886), (660, 32405), (825, 25924), (1100, 19443), (1650, 12962), (3300, 6481)]