18979632

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1031

約数の個数: 120

約数和(自身を含む): 63964160

約数和(自身を除く): 44984528

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 28, 36, 38, 42, 48, 56, 57, 63, 72, 76, 84, 112, 114, 126, 133, 144, 152, 168, 171, 228, 252, 266, 304, 336, 342, 399, 456, 504, 532, 684, 798, 912, 991, 1008, 1064, 1197, 1368, 1596, 1982, 2128, 2394, 2736, 2973, 3192, 3964, 4788, 5946, 6384, 6937, 7928, 8919, 9576, 11892, 13874, 15856, 17838, 18829, 19152, 20811, 23784, 27748, 35676, 37658, 41622, 47568, 55496, 56487, 62433, 71352, 75316, 83244, 110992, 112974, 124866, 131803, 142704, 150632, 166488, 169461, 225948, 249732, 263606, 301264, 332976, 338922, 395409, 451896, 499464, 527212, 677844, 790818, 903792, 998928, 1054424, 1186227, 1355688, 1581636, 2108848, 2372454, 2711376, 3163272, 4744908, 6326544, 9489816, 18979632]

約数ペア:

[(1, 18979632), (2, 9489816), (3, 6326544), (4, 4744908), (6, 3163272), (7, 2711376), (8, 2372454), (9, 2108848), (12, 1581636), (14, 1355688), (16, 1186227), (18, 1054424), (19, 998928), (21, 903792), (24, 790818), (28, 677844), (36, 527212), (38, 499464), (42, 451896), (48, 395409), (56, 338922), (57, 332976), (63, 301264), (72, 263606), (76, 249732), (84, 225948), (112, 169461), (114, 166488), (126, 150632), (133, 142704), (144, 131803), (152, 124866), (168, 112974), (171, 110992), (228, 83244), (252, 75316), (266, 71352), (304, 62433), (336, 56487), (342, 55496), (399, 47568), (456, 41622), (504, 37658), (532, 35676), (684, 27748), (798, 23784), (912, 20811), (991, 19152), (1008, 18829), (1064, 17838), (1197, 15856), (1368, 13874), (1596, 11892), (1982, 9576), (2128, 8919), (2394, 7928), (2736, 6937), (2973, 6384), (3192, 5946), (3964, 4788)]