221517816

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{619}}^1$

素因数の和:709

約数の個数: 128

約数和(自身を含む): 633292800

約数和(自身を除く): 411774984

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 37, 39, 52, 62, 74, 78, 93, 104, 111, 124, 148, 156, 186, 222, 248, 296, 312, 372, 403, 444, 481, 619, 744, 806, 888, 962, 1147, 1209, 1238, 1443, 1612, 1857, 1924, 2294, 2418, 2476, 2886, 3224, 3441, 3714, 3848, 4588, 4836, 4952, 5772, 6882, 7428, 8047, 9176, 9672, 11544, 13764, 14856, 14911, 16094, 19189, 22903, 24141, 27528, 29822, 32188, 38378, 44733, 45806, 48282, 57567, 59644, 64376, 68709, 76756, 89466, 91612, 96564, 115134, 119288, 137418, 153512, 178932, 183224, 193128, 230268, 249457, 274836, 297739, 357864, 460536, 498914, 549672, 595478, 709993, 748371, 893217, 997828, 1190956, 1419986, 1496742, 1786434, 1995656, 2129979, 2381912, 2839972, 2993484, 3572868, 4259958, 5679944, 5986968, 7145736, 8519916, 9229909, 17039832, 18459818, 27689727, 36919636, 55379454, 73839272, 110758908, 221517816]

約数ペア:

[(1, 221517816), (2, 110758908), (3, 73839272), (4, 55379454), (6, 36919636), (8, 27689727), (12, 18459818), (13, 17039832), (24, 9229909), (26, 8519916), (31, 7145736), (37, 5986968), (39, 5679944), (52, 4259958), (62, 3572868), (74, 2993484), (78, 2839972), (93, 2381912), (104, 2129979), (111, 1995656), (124, 1786434), (148, 1496742), (156, 1419986), (186, 1190956), (222, 997828), (248, 893217), (296, 748371), (312, 709993), (372, 595478), (403, 549672), (444, 498914), (481, 460536), (619, 357864), (744, 297739), (806, 274836), (888, 249457), (962, 230268), (1147, 193128), (1209, 183224), (1238, 178932), (1443, 153512), (1612, 137418), (1857, 119288), (1924, 115134), (2294, 96564), (2418, 91612), (2476, 89466), (2886, 76756), (3224, 68709), (3441, 64376), (3714, 59644), (3848, 57567), (4588, 48282), (4836, 45806), (4952, 44733), (5772, 38378), (6882, 32188), (7428, 29822), (8047, 27528), (9176, 24141), (9672, 22903), (11544, 19189), (13764, 16094), (14856, 14911)]