20595718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 39481344

約数和(自身を除く): 18885626

約数列:

[1, 2, 11, 13, 22, 23, 26, 31, 46, 62, 101, 143, 202, 253, 286, 299, 341, 403, 506, 598, 682, 713, 806, 1111, 1313, 1426, 2222, 2323, 2626, 3131, 3289, 4433, 4646, 6262, 6578, 7843, 8866, 9269, 14443, 15686, 18538, 25553, 28886, 30199, 34441, 40703, 51106, 60398, 68882, 72013, 81406, 101959, 144026, 203918, 332189, 447733, 664378, 792143, 895466, 936169, 1584286, 1872338, 10297859, 20595718]

約数ペア:

[(1, 20595718), (2, 10297859), (11, 1872338), (13, 1584286), (22, 936169), (23, 895466), (26, 792143), (31, 664378), (46, 447733), (62, 332189), (101, 203918), (143, 144026), (202, 101959), (253, 81406), (286, 72013), (299, 68882), (341, 60398), (403, 51106), (506, 40703), (598, 34441), (682, 30199), (713, 28886), (806, 25553), (1111, 18538), (1313, 15686), (1426, 14443), (2222, 9269), (2323, 8866), (2626, 7843), (3131, 6578), (3289, 6262), (4433, 4646)]