21708558

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1163}}^1$

素因数の和:1249

約数の個数: 48

約数和(自身を含む): 50661936

約数和(自身を除く): 28953378

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 61, 102, 122, 153, 183, 306, 366, 549, 1037, 1098, 1163, 2074, 2326, 3111, 3489, 6222, 6978, 9333, 10467, 18666, 19771, 20934, 39542, 59313, 70943, 118626, 141886, 177939, 212829, 355878, 425658, 638487, 1206031, 1276974, 2412062, 3618093, 7236186, 10854279, 21708558]

約数ペア:

[(1, 21708558), (2, 10854279), (3, 7236186), (6, 3618093), (9, 2412062), (17, 1276974), (18, 1206031), (34, 638487), (51, 425658), (61, 355878), (102, 212829), (122, 177939), (153, 141886), (183, 118626), (306, 70943), (366, 59313), (549, 39542), (1037, 20934), (1098, 19771), (1163, 18666), (2074, 10467), (2326, 9333), (3111, 6978), (3489, 6222)]