211997790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21221}}^1$

素因数の和:21274

約数の個数: 64

約数和(自身を含む): 580633920

約数和(自身を除く): 368636130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1998, 3330, 4995, 9990, 21221, 42442, 63663, 106105, 127326, 190989, 212210, 318315, 381978, 572967, 636630, 785177, 954945, 1145934, 1570354, 1909890, 2355531, 2864835, 3925885, 4711062, 5729670, 7066593, 7851770, 11777655, 14133186, 21199779, 23555310, 35332965, 42399558, 70665930, 105998895, 211997790]

約数ペア:

[(1, 211997790), (2, 105998895), (3, 70665930), (5, 42399558), (6, 35332965), (9, 23555310), (10, 21199779), (15, 14133186), (18, 11777655), (27, 7851770), (30, 7066593), (37, 5729670), (45, 4711062), (54, 3925885), (74, 2864835), (90, 2355531), (111, 1909890), (135, 1570354), (185, 1145934), (222, 954945), (270, 785177), (333, 636630), (370, 572967), (555, 381978), (666, 318315), (999, 212210), (1110, 190989), (1665, 127326), (1998, 106105), (3330, 63663), (4995, 42442), (9990, 21221)]