20722218

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 51020928

約数和(自身を除く): 30298710

約数列:

[1, 2, 3, 6, 11, 17, 22, 23, 33, 34, 46, 51, 66, 69, 73, 102, 121, 138, 146, 187, 219, 242, 253, 363, 374, 391, 438, 506, 561, 726, 759, 782, 803, 1122, 1173, 1241, 1518, 1606, 1679, 2057, 2346, 2409, 2482, 2783, 3358, 3723, 4114, 4301, 4818, 5037, 5566, 6171, 7446, 8349, 8602, 8833, 10074, 12342, 12903, 13651, 16698, 17666, 18469, 25806, 26499, 27302, 28543, 36938, 40953, 47311, 52998, 55407, 57086, 81906, 85629, 94622, 110814, 141933, 150161, 171258, 203159, 283866, 300322, 313973, 406318, 450483, 609477, 627946, 900966, 941919, 1218954, 1883838, 3453703, 6907406, 10361109, 20722218]

約数ペア:

[(1, 20722218), (2, 10361109), (3, 6907406), (6, 3453703), (11, 1883838), (17, 1218954), (22, 941919), (23, 900966), (33, 627946), (34, 609477), (46, 450483), (51, 406318), (66, 313973), (69, 300322), (73, 283866), (102, 203159), (121, 171258), (138, 150161), (146, 141933), (187, 110814), (219, 94622), (242, 85629), (253, 81906), (363, 57086), (374, 55407), (391, 52998), (438, 47311), (506, 40953), (561, 36938), (726, 28543), (759, 27302), (782, 26499), (803, 25806), (1122, 18469), (1173, 17666), (1241, 16698), (1518, 13651), (1606, 12903), (1679, 12342), (2057, 10074), (2346, 8833), (2409, 8602), (2482, 8349), (2783, 7446), (3358, 6171), (3723, 5566), (4114, 5037), (4301, 4818)]