21343440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{787}}^1$

素因数の和:916

約数の個数: 80

約数和(自身を含む): 66835008

約数和(自身を除く): 45491568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 113, 120, 226, 240, 339, 452, 565, 678, 787, 904, 1130, 1356, 1574, 1695, 1808, 2260, 2361, 2712, 3148, 3390, 3935, 4520, 4722, 5424, 6296, 6780, 7870, 9040, 9444, 11805, 12592, 13560, 15740, 18888, 23610, 27120, 31480, 37776, 47220, 62960, 88931, 94440, 177862, 188880, 266793, 355724, 444655, 533586, 711448, 889310, 1067172, 1333965, 1422896, 1778620, 2134344, 2667930, 3557240, 4268688, 5335860, 7114480, 10671720, 21343440]

約数ペア:

[(1, 21343440), (2, 10671720), (3, 7114480), (4, 5335860), (5, 4268688), (6, 3557240), (8, 2667930), (10, 2134344), (12, 1778620), (15, 1422896), (16, 1333965), (20, 1067172), (24, 889310), (30, 711448), (40, 533586), (48, 444655), (60, 355724), (80, 266793), (113, 188880), (120, 177862), (226, 94440), (240, 88931), (339, 62960), (452, 47220), (565, 37776), (678, 31480), (787, 27120), (904, 23610), (1130, 18888), (1356, 15740), (1574, 13560), (1695, 12592), (1808, 11805), (2260, 9444), (2361, 9040), (2712, 7870), (3148, 6780), (3390, 6296), (3935, 5424), (4520, 4722)]