21085320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:199

約数の個数: 128

約数和(自身を含む): 67132800

約数和(自身を除く): 46047480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 73, 83, 87, 116, 120, 145, 146, 166, 174, 219, 232, 249, 290, 292, 332, 348, 365, 415, 435, 438, 498, 580, 584, 664, 696, 730, 830, 870, 876, 996, 1095, 1160, 1245, 1460, 1660, 1740, 1752, 1992, 2117, 2190, 2407, 2490, 2920, 3320, 3480, 4234, 4380, 4814, 4980, 6059, 6351, 7221, 8468, 8760, 9628, 9960, 10585, 12035, 12118, 12702, 14442, 16936, 18177, 19256, 21170, 24070, 24236, 25404, 28884, 30295, 31755, 36105, 36354, 42340, 48140, 48472, 50808, 57768, 60590, 63510, 72210, 72708, 84680, 90885, 96280, 121180, 127020, 144420, 145416, 175711, 181770, 242360, 254040, 288840, 351422, 363540, 527133, 702844, 727080, 878555, 1054266, 1405688, 1757110, 2108532, 2635665, 3514220, 4217064, 5271330, 7028440, 10542660, 21085320]

約数ペア:

[(1, 21085320), (2, 10542660), (3, 7028440), (4, 5271330), (5, 4217064), (6, 3514220), (8, 2635665), (10, 2108532), (12, 1757110), (15, 1405688), (20, 1054266), (24, 878555), (29, 727080), (30, 702844), (40, 527133), (58, 363540), (60, 351422), (73, 288840), (83, 254040), (87, 242360), (116, 181770), (120, 175711), (145, 145416), (146, 144420), (166, 127020), (174, 121180), (219, 96280), (232, 90885), (249, 84680), (290, 72708), (292, 72210), (332, 63510), (348, 60590), (365, 57768), (415, 50808), (435, 48472), (438, 48140), (498, 42340), (580, 36354), (584, 36105), (664, 31755), (696, 30295), (730, 28884), (830, 25404), (870, 24236), (876, 24070), (996, 21170), (1095, 19256), (1160, 18177), (1245, 16936), (1460, 14442), (1660, 12702), (1740, 12118), (1752, 12035), (1992, 10585), (2117, 9960), (2190, 9628), (2407, 8760), (2490, 8468), (2920, 7221), (3320, 6351), (3480, 6059), (4234, 4980), (4380, 4814)]