221361954

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 495839232

約数和(自身を除く): 274477278

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 71, 97, 142, 194, 213, 291, 426, 487, 582, 781, 974, 1067, 1461, 1562, 2134, 2343, 2922, 3201, 4686, 5357, 6402, 6887, 10714, 13774, 16071, 20661, 32142, 34577, 41322, 47239, 69154, 75757, 94478, 103731, 141717, 151514, 207462, 227271, 283434, 380347, 454542, 519629, 760694, 1039258, 1141041, 1558887, 2282082, 3117774, 3353969, 6707938, 10061907, 20123814, 36893659, 73787318, 110680977, 221361954]

約数ペア:

[(1, 221361954), (2, 110680977), (3, 73787318), (6, 36893659), (11, 20123814), (22, 10061907), (33, 6707938), (66, 3353969), (71, 3117774), (97, 2282082), (142, 1558887), (194, 1141041), (213, 1039258), (291, 760694), (426, 519629), (487, 454542), (582, 380347), (781, 283434), (974, 227271), (1067, 207462), (1461, 151514), (1562, 141717), (2134, 103731), (2343, 94478), (2922, 75757), (3201, 69154), (4686, 47239), (5357, 41322), (6402, 34577), (6887, 32142), (10714, 20661), (13774, 16071)]