19748384

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 40372416

約数和(自身を除く): 20624032

約数列:

[1, 2, 4, 8, 16, 32, 61, 67, 122, 134, 151, 244, 268, 302, 488, 536, 604, 976, 1072, 1208, 1952, 2144, 2416, 4087, 4832, 8174, 9211, 10117, 16348, 18422, 20234, 32696, 36844, 40468, 65392, 73688, 80936, 130784, 147376, 161872, 294752, 323744, 617137, 1234274, 2468548, 4937096, 9874192, 19748384]

約数ペア:

[(1, 19748384), (2, 9874192), (4, 4937096), (8, 2468548), (16, 1234274), (32, 617137), (61, 323744), (67, 294752), (122, 161872), (134, 147376), (151, 130784), (244, 80936), (268, 73688), (302, 65392), (488, 40468), (536, 36844), (604, 32696), (976, 20234), (1072, 18422), (1208, 16348), (1952, 10117), (2144, 9211), (2416, 8174), (4087, 4832)]