21206240

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12049}}^1$

素因数の和:12075

約数の個数: 48

約数和(自身を含む): 54658800

約数和(自身を除く): 33452560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 12049, 24098, 48196, 60245, 96392, 120490, 132539, 192784, 240980, 265078, 385568, 481960, 530156, 662695, 963920, 1060312, 1325390, 1927840, 2120624, 2650780, 4241248, 5301560, 10603120, 21206240]

約数ペア:

[(1, 21206240), (2, 10603120), (4, 5301560), (5, 4241248), (8, 2650780), (10, 2120624), (11, 1927840), (16, 1325390), (20, 1060312), (22, 963920), (32, 662695), (40, 530156), (44, 481960), (55, 385568), (80, 265078), (88, 240980), (110, 192784), (160, 132539), (176, 120490), (220, 96392), (352, 60245), (440, 48196), (880, 24098), (1760, 12049)]