21000314646

素因数分解:

$2^1\times 3^2\times {\mathrm{173}}^1\times {\mathrm{397}}^1\times {\mathrm{16987}}^1$

素因数の和:17565

約数の個数: 48

約数和(自身を含む): 45881666064

約数和(自身を除く): 24881351418

約数列:

[1, 2, 3, 6, 9, 18, 173, 346, 397, 519, 794, 1038, 1191, 1557, 2382, 3114, 3573, 7146, 16987, 33974, 50961, 68681, 101922, 137362, 152883, 206043, 305766, 412086, 618129, 1236258, 2938751, 5877502, 6743839, 8816253, 13487678, 17632506, 20231517, 26448759, 40463034, 52897518, 60694551, 121389102, 1166684147, 2333368294, 3500052441, 7000104882, 10500157323, 21000314646]

約数ペア:

[(1, 21000314646), (2, 10500157323), (3, 7000104882), (6, 3500052441), (9, 2333368294), (18, 1166684147), (173, 121389102), (346, 60694551), (397, 52897518), (519, 40463034), (794, 26448759), (1038, 20231517), (1191, 17632506), (1557, 13487678), (2382, 8816253), (3114, 6743839), (3573, 5877502), (7146, 2938751), (16987, 1236258), (33974, 618129), (50961, 412086), (68681, 305766), (101922, 206043), (137362, 152883)]