21221508

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 66878784

約数和(自身を除く): 45657276

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 17, 21, 22, 28, 33, 34, 42, 44, 49, 51, 66, 68, 77, 84, 98, 102, 119, 132, 147, 154, 187, 193, 196, 204, 231, 238, 294, 308, 357, 374, 386, 462, 476, 539, 561, 579, 588, 714, 748, 772, 833, 924, 1078, 1122, 1158, 1309, 1351, 1428, 1617, 1666, 2123, 2156, 2244, 2316, 2499, 2618, 2702, 3234, 3281, 3332, 3927, 4053, 4246, 4998, 5236, 5404, 6369, 6468, 6562, 7854, 8106, 8492, 9163, 9457, 9843, 9996, 12738, 13124, 14861, 15708, 16212, 18326, 18914, 19686, 22967, 25476, 27489, 28371, 29722, 36091, 36652, 37828, 39372, 44583, 45934, 54978, 56742, 59444, 68901, 72182, 89166, 91868, 104027, 108273, 109956, 113484, 137802, 144364, 160769, 178332, 208054, 216546, 252637, 275604, 312081, 321538, 416108, 433092, 482307, 505274, 624162, 643076, 757911, 964614, 1010548, 1248324, 1515822, 1768459, 1929228, 3031644, 3536918, 5305377, 7073836, 10610754, 21221508]

約数ペア:

[(1, 21221508), (2, 10610754), (3, 7073836), (4, 5305377), (6, 3536918), (7, 3031644), (11, 1929228), (12, 1768459), (14, 1515822), (17, 1248324), (21, 1010548), (22, 964614), (28, 757911), (33, 643076), (34, 624162), (42, 505274), (44, 482307), (49, 433092), (51, 416108), (66, 321538), (68, 312081), (77, 275604), (84, 252637), (98, 216546), (102, 208054), (119, 178332), (132, 160769), (147, 144364), (154, 137802), (187, 113484), (193, 109956), (196, 108273), (204, 104027), (231, 91868), (238, 89166), (294, 72182), (308, 68901), (357, 59444), (374, 56742), (386, 54978), (462, 45934), (476, 44583), (539, 39372), (561, 37828), (579, 36652), (588, 36091), (714, 29722), (748, 28371), (772, 27489), (833, 25476), (924, 22967), (1078, 19686), (1122, 18914), (1158, 18326), (1309, 16212), (1351, 15708), (1428, 14861), (1617, 13124), (1666, 12738), (2123, 9996), (2156, 9843), (2244, 9457), (2316, 9163), (2499, 8492), (2618, 8106), (2702, 7854), (3234, 6562), (3281, 6468), (3332, 6369), (3927, 5404), (4053, 5236), (4246, 4998)]