19218650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:527

約数の個数: 48

約数和(自身を含む): 39559968

約数和(自身を除く): 20341318

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 83, 110, 166, 275, 415, 421, 550, 830, 842, 913, 1826, 2075, 2105, 4150, 4210, 4565, 4631, 9130, 9262, 10525, 21050, 22825, 23155, 34943, 45650, 46310, 69886, 115775, 174715, 231550, 349430, 384373, 768746, 873575, 1747150, 1921865, 3843730, 9609325, 19218650]

約数ペア:

[(1, 19218650), (2, 9609325), (5, 3843730), (10, 1921865), (11, 1747150), (22, 873575), (25, 768746), (50, 384373), (55, 349430), (83, 231550), (110, 174715), (166, 115775), (275, 69886), (415, 46310), (421, 45650), (550, 34943), (830, 23155), (842, 22825), (913, 21050), (1826, 10525), (2075, 9262), (2105, 9130), (4150, 4631), (4210, 4565)]