19719964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12113}}^1$

素因数の和:12165

約数の個数: 24

約数和(自身を含む): 38667888

約数和(自身を除く): 18947924

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12113, 24226, 48452, 133243, 266486, 448181, 532972, 896362, 1792724, 4929991, 9859982, 19719964]

約数ペア:

[(1, 19719964), (2, 9859982), (4, 4929991), (11, 1792724), (22, 896362), (37, 532972), (44, 448181), (74, 266486), (148, 133243), (407, 48452), (814, 24226), (1628, 12113)]