21893025

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 47996928

約数和(自身を除く): 26103903

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 25, 33, 35, 51, 55, 75, 77, 85, 105, 119, 165, 175, 187, 223, 231, 255, 275, 357, 385, 425, 525, 561, 595, 669, 825, 935, 1115, 1155, 1275, 1309, 1561, 1785, 1925, 2453, 2805, 2975, 3345, 3791, 3927, 4675, 4683, 5575, 5775, 6545, 7359, 7805, 8925, 11373, 12265, 14025, 16725, 17171, 18955, 19635, 23415, 26537, 32725, 36795, 39025, 41701, 51513, 56865, 61325, 79611, 85855, 94775, 98175, 117075, 125103, 132685, 183975, 208505, 257565, 284325, 291907, 398055, 429275, 625515, 663425, 875721, 1042525, 1287825, 1459535, 1990275, 3127575, 4378605, 7297675, 21893025]

約数ペア:

[(1, 21893025), (3, 7297675), (5, 4378605), (7, 3127575), (11, 1990275), (15, 1459535), (17, 1287825), (21, 1042525), (25, 875721), (33, 663425), (35, 625515), (51, 429275), (55, 398055), (75, 291907), (77, 284325), (85, 257565), (105, 208505), (119, 183975), (165, 132685), (175, 125103), (187, 117075), (223, 98175), (231, 94775), (255, 85855), (275, 79611), (357, 61325), (385, 56865), (425, 51513), (525, 41701), (561, 39025), (595, 36795), (669, 32725), (825, 26537), (935, 23415), (1115, 19635), (1155, 18955), (1275, 17171), (1309, 16725), (1561, 14025), (1785, 12265), (1925, 11373), (2453, 8925), (2805, 7805), (2975, 7359), (3345, 6545), (3791, 5775), (3927, 5575), (4675, 4683)]