19972992

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{4001}}^1$

素因数の和:4031

約数の個数: 64

約数和(自身を含む): 57148560

約数和(自身を除く): 37175568

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 312, 384, 416, 624, 832, 1248, 1664, 2496, 4001, 4992, 8002, 12003, 16004, 24006, 32008, 48012, 52013, 64016, 96024, 104026, 128032, 156039, 192048, 208052, 256064, 312078, 384096, 416104, 512128, 624156, 768192, 832208, 1248312, 1536384, 1664416, 2496624, 3328832, 4993248, 6657664, 9986496, 19972992]

約数ペア:

[(1, 19972992), (2, 9986496), (3, 6657664), (4, 4993248), (6, 3328832), (8, 2496624), (12, 1664416), (13, 1536384), (16, 1248312), (24, 832208), (26, 768192), (32, 624156), (39, 512128), (48, 416104), (52, 384096), (64, 312078), (78, 256064), (96, 208052), (104, 192048), (128, 156039), (156, 128032), (192, 104026), (208, 96024), (312, 64016), (384, 52013), (416, 48012), (624, 32008), (832, 24006), (1248, 16004), (1664, 12003), (2496, 8002), (4001, 4992)]