18461898

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2$

素因数の和:78

約数の個数: 144

約数和(自身を含む): 53933760

約数和(自身を除く): 35471862

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 17, 18, 21, 26, 27, 34, 39, 42, 51, 54, 63, 78, 91, 102, 117, 119, 126, 153, 169, 182, 189, 221, 234, 238, 273, 289, 306, 338, 351, 357, 378, 442, 459, 507, 546, 578, 663, 702, 714, 819, 867, 918, 1014, 1071, 1183, 1326, 1521, 1547, 1638, 1734, 1989, 2023, 2142, 2366, 2457, 2601, 2873, 3042, 3094, 3213, 3549, 3757, 3978, 4046, 4563, 4641, 4914, 5202, 5746, 5967, 6069, 6426, 7098, 7514, 7803, 8619, 9126, 9282, 10647, 11271, 11934, 12138, 13923, 15606, 17238, 18207, 20111, 21294, 22542, 25857, 26299, 27846, 31941, 33813, 36414, 40222, 41769, 48841, 51714, 52598, 54621, 60333, 63882, 67626, 77571, 78897, 83538, 97682, 101439, 109242, 120666, 146523, 155142, 157794, 180999, 202878, 236691, 293046, 341887, 361998, 439569, 473382, 542997, 683774, 710073, 879138, 1025661, 1085994, 1318707, 1420146, 2051322, 2637414, 3076983, 6153966, 9230949, 18461898]

約数ペア:

[(1, 18461898), (2, 9230949), (3, 6153966), (6, 3076983), (7, 2637414), (9, 2051322), (13, 1420146), (14, 1318707), (17, 1085994), (18, 1025661), (21, 879138), (26, 710073), (27, 683774), (34, 542997), (39, 473382), (42, 439569), (51, 361998), (54, 341887), (63, 293046), (78, 236691), (91, 202878), (102, 180999), (117, 157794), (119, 155142), (126, 146523), (153, 120666), (169, 109242), (182, 101439), (189, 97682), (221, 83538), (234, 78897), (238, 77571), (273, 67626), (289, 63882), (306, 60333), (338, 54621), (351, 52598), (357, 51714), (378, 48841), (442, 41769), (459, 40222), (507, 36414), (546, 33813), (578, 31941), (663, 27846), (702, 26299), (714, 25857), (819, 22542), (867, 21294), (918, 20111), (1014, 18207), (1071, 17238), (1183, 15606), (1326, 13923), (1521, 12138), (1547, 11934), (1638, 11271), (1734, 10647), (1989, 9282), (2023, 9126), (2142, 8619), (2366, 7803), (2457, 7514), (2601, 7098), (2873, 6426), (3042, 6069), (3094, 5967), (3213, 5746), (3549, 5202), (3757, 4914), (3978, 4641), (4046, 4563)]