21693960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:452

約数の個数: 128

約数和(自身を含む): 73872000

約数和(自身を除く): 52178040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 90, 106, 108, 120, 135, 159, 180, 212, 216, 265, 270, 318, 360, 379, 424, 477, 530, 540, 636, 758, 795, 954, 1060, 1080, 1137, 1272, 1431, 1516, 1590, 1895, 1908, 2120, 2274, 2385, 2862, 3032, 3180, 3411, 3790, 3816, 4548, 4770, 5685, 5724, 6360, 6822, 7155, 7580, 9096, 9540, 10233, 11370, 11448, 13644, 14310, 15160, 17055, 19080, 20087, 20466, 22740, 27288, 28620, 34110, 40174, 40932, 45480, 51165, 57240, 60261, 68220, 80348, 81864, 100435, 102330, 120522, 136440, 160696, 180783, 200870, 204660, 241044, 301305, 361566, 401740, 409320, 482088, 542349, 602610, 723132, 803480, 903915, 1084698, 1205220, 1446264, 1807830, 2169396, 2410440, 2711745, 3615660, 4338792, 5423490, 7231320, 10846980, 21693960]

約数ペア:

[(1, 21693960), (2, 10846980), (3, 7231320), (4, 5423490), (5, 4338792), (6, 3615660), (8, 2711745), (9, 2410440), (10, 2169396), (12, 1807830), (15, 1446264), (18, 1205220), (20, 1084698), (24, 903915), (27, 803480), (30, 723132), (36, 602610), (40, 542349), (45, 482088), (53, 409320), (54, 401740), (60, 361566), (72, 301305), (90, 241044), (106, 204660), (108, 200870), (120, 180783), (135, 160696), (159, 136440), (180, 120522), (212, 102330), (216, 100435), (265, 81864), (270, 80348), (318, 68220), (360, 60261), (379, 57240), (424, 51165), (477, 45480), (530, 40932), (540, 40174), (636, 34110), (758, 28620), (795, 27288), (954, 22740), (1060, 20466), (1080, 20087), (1137, 19080), (1272, 17055), (1431, 15160), (1516, 14310), (1590, 13644), (1895, 11448), (1908, 11370), (2120, 10233), (2274, 9540), (2385, 9096), (2862, 7580), (3032, 7155), (3180, 6822), (3411, 6360), (3790, 5724), (3816, 5685), (4548, 4770)]