21668920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5953}}^1$

素因数の和:5984

約数の個数: 64

約数和(自身を含む): 60016320

約数和(自身を除く): 38347400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5953, 11906, 23812, 29765, 41671, 47624, 59530, 77389, 83342, 119060, 154778, 166684, 208355, 238120, 309556, 333368, 386945, 416710, 541723, 619112, 773890, 833420, 1083446, 1547780, 1666840, 2166892, 2708615, 3095560, 4333784, 5417230, 10834460, 21668920]

約数ペア:

[(1, 21668920), (2, 10834460), (4, 5417230), (5, 4333784), (7, 3095560), (8, 2708615), (10, 2166892), (13, 1666840), (14, 1547780), (20, 1083446), (26, 833420), (28, 773890), (35, 619112), (40, 541723), (52, 416710), (56, 386945), (65, 333368), (70, 309556), (91, 238120), (104, 208355), (130, 166684), (140, 154778), (182, 119060), (260, 83342), (280, 77389), (364, 59530), (455, 47624), (520, 41671), (728, 29765), (910, 23812), (1820, 11906), (3640, 5953)]