21898214

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 15115546

約数列:

[1, 2, 13, 26, 31, 62, 101, 202, 269, 403, 538, 806, 1313, 2626, 3131, 3497, 6262, 6994, 8339, 16678, 27169, 40703, 54338, 81406, 108407, 216814, 353197, 706394, 842239, 1684478, 10949107, 21898214]

約数ペア:

[(1, 21898214), (2, 10949107), (13, 1684478), (26, 842239), (31, 706394), (62, 353197), (101, 216814), (202, 108407), (269, 81406), (403, 54338), (538, 40703), (806, 27169), (1313, 16678), (2626, 8339), (3131, 6994), (3497, 6262)]