21159900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{461}}^1$

素因数の和:501

約数の個数: 144

約数和(自身を含む): 72182880

約数和(自身を除く): 51022980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 27, 30, 34, 36, 45, 50, 51, 54, 60, 68, 75, 85, 90, 100, 102, 108, 135, 150, 153, 170, 180, 204, 225, 255, 270, 300, 306, 340, 425, 450, 459, 461, 510, 540, 612, 675, 765, 850, 900, 918, 922, 1020, 1275, 1350, 1383, 1530, 1700, 1836, 1844, 2295, 2305, 2550, 2700, 2766, 3060, 3825, 4149, 4590, 4610, 5100, 5532, 6915, 7650, 7837, 8298, 9180, 9220, 11475, 11525, 12447, 13830, 15300, 15674, 16596, 20745, 22950, 23050, 23511, 24894, 27660, 31348, 34575, 39185, 41490, 45900, 46100, 47022, 49788, 62235, 69150, 70533, 78370, 82980, 94044, 103725, 117555, 124470, 138300, 141066, 156740, 195925, 207450, 211599, 235110, 248940, 282132, 311175, 352665, 391850, 414900, 423198, 470220, 587775, 622350, 705330, 783700, 846396, 1057995, 1175550, 1244700, 1410660, 1763325, 2115990, 2351100, 3526650, 4231980, 5289975, 7053300, 10579950, 21159900]

約数ペア:

[(1, 21159900), (2, 10579950), (3, 7053300), (4, 5289975), (5, 4231980), (6, 3526650), (9, 2351100), (10, 2115990), (12, 1763325), (15, 1410660), (17, 1244700), (18, 1175550), (20, 1057995), (25, 846396), (27, 783700), (30, 705330), (34, 622350), (36, 587775), (45, 470220), (50, 423198), (51, 414900), (54, 391850), (60, 352665), (68, 311175), (75, 282132), (85, 248940), (90, 235110), (100, 211599), (102, 207450), (108, 195925), (135, 156740), (150, 141066), (153, 138300), (170, 124470), (180, 117555), (204, 103725), (225, 94044), (255, 82980), (270, 78370), (300, 70533), (306, 69150), (340, 62235), (425, 49788), (450, 47022), (459, 46100), (461, 45900), (510, 41490), (540, 39185), (612, 34575), (675, 31348), (765, 27660), (850, 24894), (900, 23511), (918, 23050), (922, 22950), (1020, 20745), (1275, 16596), (1350, 15674), (1383, 15300), (1530, 13830), (1700, 12447), (1836, 11525), (1844, 11475), (2295, 9220), (2305, 9180), (2550, 8298), (2700, 7837), (2766, 7650), (3060, 6915), (3825, 5532), (4149, 5100), (4590, 4610)]