19904556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8171}}^1$

素因数の和:8214

約数の個数: 48

約数和(自身を含む): 54915840

約数和(自身を除く): 35011284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 84, 87, 116, 174, 203, 348, 406, 609, 812, 1218, 2436, 8171, 16342, 24513, 32684, 49026, 57197, 98052, 114394, 171591, 228788, 236959, 343182, 473918, 686364, 710877, 947836, 1421754, 1658713, 2843508, 3317426, 4976139, 6634852, 9952278, 19904556]

約数ペア:

[(1, 19904556), (2, 9952278), (3, 6634852), (4, 4976139), (6, 3317426), (7, 2843508), (12, 1658713), (14, 1421754), (21, 947836), (28, 710877), (29, 686364), (42, 473918), (58, 343182), (84, 236959), (87, 228788), (116, 171591), (174, 114394), (203, 98052), (348, 57197), (406, 49026), (609, 32684), (812, 24513), (1218, 16342), (2436, 8171)]