221736291

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{4091}}^1$

素因数の和:4219

約数の個数: 32

約数和(自身を含む): 353548800

約数和(自身を除く): 131812509

約数列:

[1, 3, 7, 21, 29, 87, 89, 203, 267, 609, 623, 1869, 2581, 4091, 7743, 12273, 18067, 28637, 54201, 85911, 118639, 355917, 364099, 830473, 1092297, 2491419, 2548693, 7646079, 10558871, 31676613, 73912097, 221736291]

約数ペア:

[(1, 221736291), (3, 73912097), (7, 31676613), (21, 10558871), (29, 7646079), (87, 2548693), (89, 2491419), (203, 1092297), (267, 830473), (609, 364099), (623, 355917), (1869, 118639), (2581, 85911), (4091, 54201), (7743, 28637), (12273, 18067)]