20327944

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3989}}^1$

素因数の和:4022

約数の個数: 48

約数和(自身を含む): 47760300

約数和(自身を除く): 27432356

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 3989, 5096, 7978, 15956, 27923, 31912, 51857, 55846, 103714, 111692, 195461, 207428, 223384, 362999, 390922, 414856, 725998, 781844, 1451996, 1563688, 2540993, 2903992, 5081986, 10163972, 20327944]

約数ペア:

[(1, 20327944), (2, 10163972), (4, 5081986), (7, 2903992), (8, 2540993), (13, 1563688), (14, 1451996), (26, 781844), (28, 725998), (49, 414856), (52, 390922), (56, 362999), (91, 223384), (98, 207428), (104, 195461), (182, 111692), (196, 103714), (364, 55846), (392, 51857), (637, 31912), (728, 27923), (1274, 15956), (2548, 7978), (3989, 5096)]