21120210

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 41087790

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 23, 27, 30, 38, 45, 46, 54, 57, 69, 90, 95, 114, 115, 135, 138, 171, 179, 190, 207, 230, 270, 285, 342, 345, 358, 414, 437, 513, 537, 570, 621, 690, 855, 874, 895, 1026, 1035, 1074, 1242, 1311, 1611, 1710, 1790, 2070, 2185, 2565, 2622, 2685, 3105, 3222, 3401, 3933, 4117, 4370, 4833, 5130, 5370, 6210, 6555, 6802, 7866, 8055, 8234, 9666, 10203, 11799, 12351, 13110, 16110, 17005, 19665, 20406, 20585, 23598, 24165, 24702, 30609, 34010, 37053, 39330, 41170, 48330, 51015, 58995, 61218, 61755, 74106, 78223, 91827, 102030, 111159, 117990, 123510, 153045, 156446, 183654, 185265, 222318, 234669, 306090, 370530, 391115, 459135, 469338, 555795, 704007, 782230, 918270, 1111590, 1173345, 1408014, 2112021, 2346690, 3520035, 4224042, 7040070, 10560105, 21120210]

約数ペア:

[(1, 21120210), (2, 10560105), (3, 7040070), (5, 4224042), (6, 3520035), (9, 2346690), (10, 2112021), (15, 1408014), (18, 1173345), (19, 1111590), (23, 918270), (27, 782230), (30, 704007), (38, 555795), (45, 469338), (46, 459135), (54, 391115), (57, 370530), (69, 306090), (90, 234669), (95, 222318), (114, 185265), (115, 183654), (135, 156446), (138, 153045), (171, 123510), (179, 117990), (190, 111159), (207, 102030), (230, 91827), (270, 78223), (285, 74106), (342, 61755), (345, 61218), (358, 58995), (414, 51015), (437, 48330), (513, 41170), (537, 39330), (570, 37053), (621, 34010), (690, 30609), (855, 24702), (874, 24165), (895, 23598), (1026, 20585), (1035, 20406), (1074, 19665), (1242, 17005), (1311, 16110), (1611, 13110), (1710, 12351), (1790, 11799), (2070, 10203), (2185, 9666), (2565, 8234), (2622, 8055), (2685, 7866), (3105, 6802), (3222, 6555), (3401, 6210), (3933, 5370), (4117, 5130), (4370, 4833)]