18715424

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6427}}^1$

素因数の和:6457

約数の個数: 48

約数和(自身を含む): 45355968

約数和(自身を除く): 26640544

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 6427, 12854, 25708, 44989, 51416, 83551, 89978, 102832, 167102, 179956, 205664, 334204, 359912, 584857, 668408, 719824, 1169714, 1336816, 1439648, 2339428, 2673632, 4678856, 9357712, 18715424]

約数ペア:

[(1, 18715424), (2, 9357712), (4, 4678856), (7, 2673632), (8, 2339428), (13, 1439648), (14, 1336816), (16, 1169714), (26, 719824), (28, 668408), (32, 584857), (52, 359912), (56, 334204), (91, 205664), (104, 179956), (112, 167102), (182, 102832), (208, 89978), (224, 83551), (364, 51416), (416, 44989), (728, 25708), (1456, 12854), (2912, 6427)]