21030408

素因数分解:

$2^3\times 3^3\times 7^2\times {\mathrm{1987}}^1$

素因数の和:2016

約数の個数: 96

約数和(自身を含む): 67989600

約数和(自身を除く): 46959192

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 49, 54, 56, 63, 72, 84, 98, 108, 126, 147, 168, 189, 196, 216, 252, 294, 378, 392, 441, 504, 588, 756, 882, 1176, 1323, 1512, 1764, 1987, 2646, 3528, 3974, 5292, 5961, 7948, 10584, 11922, 13909, 15896, 17883, 23844, 27818, 35766, 41727, 47688, 53649, 55636, 71532, 83454, 97363, 107298, 111272, 125181, 143064, 166908, 194726, 214596, 250362, 292089, 333816, 375543, 389452, 429192, 500724, 584178, 751086, 778904, 876267, 1001448, 1168356, 1502172, 1752534, 2336712, 2628801, 3004344, 3505068, 5257602, 7010136, 10515204, 21030408]

約数ペア:

[(1, 21030408), (2, 10515204), (3, 7010136), (4, 5257602), (6, 3505068), (7, 3004344), (8, 2628801), (9, 2336712), (12, 1752534), (14, 1502172), (18, 1168356), (21, 1001448), (24, 876267), (27, 778904), (28, 751086), (36, 584178), (42, 500724), (49, 429192), (54, 389452), (56, 375543), (63, 333816), (72, 292089), (84, 250362), (98, 214596), (108, 194726), (126, 166908), (147, 143064), (168, 125181), (189, 111272), (196, 107298), (216, 97363), (252, 83454), (294, 71532), (378, 55636), (392, 53649), (441, 47688), (504, 41727), (588, 35766), (756, 27818), (882, 23844), (1176, 17883), (1323, 15896), (1512, 13909), (1764, 11922), (1987, 10584), (2646, 7948), (3528, 5961), (3974, 5292)]