20556756

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 61746048

約数和(自身を除く): 41189292

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 23, 33, 36, 37, 44, 46, 61, 66, 69, 74, 92, 99, 111, 122, 132, 138, 148, 183, 198, 207, 222, 244, 253, 276, 333, 366, 396, 407, 414, 444, 506, 549, 666, 671, 732, 759, 814, 828, 851, 1012, 1098, 1221, 1332, 1342, 1403, 1518, 1628, 1702, 2013, 2196, 2257, 2277, 2442, 2553, 2684, 2806, 3036, 3404, 3663, 4026, 4209, 4514, 4554, 4884, 5106, 5612, 6039, 6771, 7326, 7659, 8052, 8418, 9028, 9108, 9361, 10212, 12078, 12627, 13542, 14652, 15318, 15433, 16836, 18722, 20313, 24156, 24827, 25254, 27084, 28083, 30636, 30866, 37444, 40626, 46299, 49654, 50508, 51911, 56166, 61732, 74481, 81252, 84249, 92598, 99308, 103822, 112332, 138897, 148962, 155733, 168498, 185196, 207644, 223443, 277794, 297924, 311466, 336996, 446886, 467199, 555588, 571021, 622932, 893772, 934398, 1142042, 1713063, 1868796, 2284084, 3426126, 5139189, 6852252, 10278378, 20556756]

約数ペア:

[(1, 20556756), (2, 10278378), (3, 6852252), (4, 5139189), (6, 3426126), (9, 2284084), (11, 1868796), (12, 1713063), (18, 1142042), (22, 934398), (23, 893772), (33, 622932), (36, 571021), (37, 555588), (44, 467199), (46, 446886), (61, 336996), (66, 311466), (69, 297924), (74, 277794), (92, 223443), (99, 207644), (111, 185196), (122, 168498), (132, 155733), (138, 148962), (148, 138897), (183, 112332), (198, 103822), (207, 99308), (222, 92598), (244, 84249), (253, 81252), (276, 74481), (333, 61732), (366, 56166), (396, 51911), (407, 50508), (414, 49654), (444, 46299), (506, 40626), (549, 37444), (666, 30866), (671, 30636), (732, 28083), (759, 27084), (814, 25254), (828, 24827), (851, 24156), (1012, 20313), (1098, 18722), (1221, 16836), (1332, 15433), (1342, 15318), (1403, 14652), (1518, 13542), (1628, 12627), (1702, 12078), (2013, 10212), (2196, 9361), (2257, 9108), (2277, 9028), (2442, 8418), (2553, 8052), (2684, 7659), (2806, 7326), (3036, 6771), (3404, 6039), (3663, 5612), (4026, 5106), (4209, 4884), (4514, 4554)]