21301128

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{677}}^1$

素因数の和:731

約数の個数: 96

約数和(自身を含む): 63460800

約数和(自身を除く): 42159672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 23, 24, 36, 38, 46, 57, 69, 72, 76, 92, 114, 138, 152, 171, 184, 207, 228, 276, 342, 414, 437, 456, 552, 677, 684, 828, 874, 1311, 1354, 1368, 1656, 1748, 2031, 2622, 2708, 3496, 3933, 4062, 5244, 5416, 6093, 7866, 8124, 10488, 12186, 12863, 15571, 15732, 16248, 24372, 25726, 31142, 31464, 38589, 46713, 48744, 51452, 62284, 77178, 93426, 102904, 115767, 124568, 140139, 154356, 186852, 231534, 280278, 295849, 308712, 373704, 463068, 560556, 591698, 887547, 926136, 1121112, 1183396, 1775094, 2366792, 2662641, 3550188, 5325282, 7100376, 10650564, 21301128]

約数ペア:

[(1, 21301128), (2, 10650564), (3, 7100376), (4, 5325282), (6, 3550188), (8, 2662641), (9, 2366792), (12, 1775094), (18, 1183396), (19, 1121112), (23, 926136), (24, 887547), (36, 591698), (38, 560556), (46, 463068), (57, 373704), (69, 308712), (72, 295849), (76, 280278), (92, 231534), (114, 186852), (138, 154356), (152, 140139), (171, 124568), (184, 115767), (207, 102904), (228, 93426), (276, 77178), (342, 62284), (414, 51452), (437, 48744), (456, 46713), (552, 38589), (677, 31464), (684, 31142), (828, 25726), (874, 24372), (1311, 16248), (1354, 15732), (1368, 15571), (1656, 12863), (1748, 12186), (2031, 10488), (2622, 8124), (2708, 7866), (3496, 6093), (3933, 5416), (4062, 5244)]