21363780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 63431424

約数和(自身を除く): 42067644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 113, 115, 137, 138, 226, 230, 274, 276, 339, 345, 411, 452, 460, 548, 565, 678, 685, 690, 822, 1130, 1356, 1370, 1380, 1644, 1695, 2055, 2260, 2599, 2740, 3151, 3390, 4110, 5198, 6302, 6780, 7797, 8220, 9453, 10396, 12604, 12995, 15481, 15594, 15755, 18906, 25990, 30962, 31188, 31510, 37812, 38985, 46443, 47265, 51980, 61924, 63020, 77405, 77970, 92886, 94530, 154810, 155940, 185772, 189060, 232215, 309620, 356063, 464430, 712126, 928860, 1068189, 1424252, 1780315, 2136378, 3560630, 4272756, 5340945, 7121260, 10681890, 21363780]

約数ペア:

[(1, 21363780), (2, 10681890), (3, 7121260), (4, 5340945), (5, 4272756), (6, 3560630), (10, 2136378), (12, 1780315), (15, 1424252), (20, 1068189), (23, 928860), (30, 712126), (46, 464430), (60, 356063), (69, 309620), (92, 232215), (113, 189060), (115, 185772), (137, 155940), (138, 154810), (226, 94530), (230, 92886), (274, 77970), (276, 77405), (339, 63020), (345, 61924), (411, 51980), (452, 47265), (460, 46443), (548, 38985), (565, 37812), (678, 31510), (685, 31188), (690, 30962), (822, 25990), (1130, 18906), (1356, 15755), (1370, 15594), (1380, 15481), (1644, 12995), (1695, 12604), (2055, 10396), (2260, 9453), (2599, 8220), (2740, 7797), (3151, 6780), (3390, 6302), (4110, 5198)]