21343770

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:537

約数の個数: 128

約数和(自身を含む): 68014080

約数和(自身を除く): 46670310

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 27, 30, 35, 42, 45, 46, 54, 63, 69, 70, 90, 105, 115, 126, 135, 138, 161, 189, 207, 210, 230, 270, 315, 322, 345, 378, 414, 483, 491, 621, 630, 690, 805, 945, 966, 982, 1035, 1242, 1449, 1473, 1610, 1890, 2070, 2415, 2455, 2898, 2946, 3105, 3437, 4347, 4419, 4830, 4910, 6210, 6874, 7245, 7365, 8694, 8838, 10311, 11293, 13257, 14490, 14730, 17185, 20622, 21735, 22095, 22586, 26514, 30933, 33879, 34370, 43470, 44190, 51555, 56465, 61866, 66285, 67758, 79051, 92799, 101637, 103110, 112930, 132570, 154665, 158102, 169395, 185598, 203274, 237153, 304911, 309330, 338790, 395255, 463995, 474306, 508185, 609822, 711459, 790510, 927990, 1016370, 1185765, 1422918, 1524555, 2134377, 2371530, 3049110, 3557295, 4268754, 7114590, 10671885, 21343770]

約数ペア:

[(1, 21343770), (2, 10671885), (3, 7114590), (5, 4268754), (6, 3557295), (7, 3049110), (9, 2371530), (10, 2134377), (14, 1524555), (15, 1422918), (18, 1185765), (21, 1016370), (23, 927990), (27, 790510), (30, 711459), (35, 609822), (42, 508185), (45, 474306), (46, 463995), (54, 395255), (63, 338790), (69, 309330), (70, 304911), (90, 237153), (105, 203274), (115, 185598), (126, 169395), (135, 158102), (138, 154665), (161, 132570), (189, 112930), (207, 103110), (210, 101637), (230, 92799), (270, 79051), (315, 67758), (322, 66285), (345, 61866), (378, 56465), (414, 51555), (483, 44190), (491, 43470), (621, 34370), (630, 33879), (690, 30933), (805, 26514), (945, 22586), (966, 22095), (982, 21735), (1035, 20622), (1242, 17185), (1449, 14730), (1473, 14490), (1610, 13257), (1890, 11293), (2070, 10311), (2415, 8838), (2455, 8694), (2898, 7365), (2946, 7245), (3105, 6874), (3437, 6210), (4347, 4910), (4419, 4830)]