21490218

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{13723}}^1$

素因数の和:13763

約数の個数: 32

約数和(自身を含む): 49406400

約数和(自身を除く): 27916182

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 87, 174, 261, 522, 783, 1566, 13723, 27446, 41169, 82338, 123507, 247014, 370521, 397967, 741042, 795934, 1193901, 2387802, 3581703, 7163406, 10745109, 21490218]

約数ペア:

[(1, 21490218), (2, 10745109), (3, 7163406), (6, 3581703), (9, 2387802), (18, 1193901), (27, 795934), (29, 741042), (54, 397967), (58, 370521), (87, 247014), (174, 123507), (261, 82338), (522, 41169), (783, 27446), (1566, 13723)]