18242172

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 120

約数和(自身を含む): 52934112

約数和(自身を除く): 34691940

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 61, 71, 78, 81, 108, 117, 122, 142, 156, 162, 183, 213, 234, 244, 284, 324, 351, 366, 426, 468, 549, 639, 702, 732, 793, 852, 923, 1053, 1098, 1278, 1404, 1586, 1647, 1846, 1917, 2106, 2196, 2379, 2556, 2769, 3172, 3294, 3692, 3834, 4212, 4331, 4758, 4941, 5538, 5751, 6588, 7137, 7668, 8307, 8662, 9516, 9882, 11076, 11502, 12993, 14274, 16614, 17324, 19764, 21411, 23004, 24921, 25986, 28548, 33228, 38979, 42822, 49842, 51972, 56303, 64233, 74763, 77958, 85644, 99684, 112606, 116937, 128466, 149526, 155916, 168909, 225212, 233874, 256932, 299052, 337818, 350811, 467748, 506727, 675636, 701622, 1013454, 1403244, 1520181, 2026908, 3040362, 4560543, 6080724, 9121086, 18242172]

約数ペア:

[(1, 18242172), (2, 9121086), (3, 6080724), (4, 4560543), (6, 3040362), (9, 2026908), (12, 1520181), (13, 1403244), (18, 1013454), (26, 701622), (27, 675636), (36, 506727), (39, 467748), (52, 350811), (54, 337818), (61, 299052), (71, 256932), (78, 233874), (81, 225212), (108, 168909), (117, 155916), (122, 149526), (142, 128466), (156, 116937), (162, 112606), (183, 99684), (213, 85644), (234, 77958), (244, 74763), (284, 64233), (324, 56303), (351, 51972), (366, 49842), (426, 42822), (468, 38979), (549, 33228), (639, 28548), (702, 25986), (732, 24921), (793, 23004), (852, 21411), (923, 19764), (1053, 17324), (1098, 16614), (1278, 14274), (1404, 12993), (1586, 11502), (1647, 11076), (1846, 9882), (1917, 9516), (2106, 8662), (2196, 8307), (2379, 7668), (2556, 7137), (2769, 6588), (3172, 5751), (3294, 5538), (3692, 4941), (3834, 4758), (4212, 4331)]