21783328

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3137}}^1$

素因数の和:3185

約数の個数: 48

約数和(自身を含む): 50609664

約数和(自身を除く): 28826336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 3137, 3472, 6274, 6944, 12548, 21959, 25096, 43918, 50192, 87836, 97247, 100384, 175672, 194494, 351344, 388988, 680729, 702688, 777976, 1361458, 1555952, 2722916, 3111904, 5445832, 10891664, 21783328]

約数ペア:

[(1, 21783328), (2, 10891664), (4, 5445832), (7, 3111904), (8, 2722916), (14, 1555952), (16, 1361458), (28, 777976), (31, 702688), (32, 680729), (56, 388988), (62, 351344), (112, 194494), (124, 175672), (217, 100384), (224, 97247), (248, 87836), (434, 50192), (496, 43918), (868, 25096), (992, 21959), (1736, 12548), (3137, 6944), (3472, 6274)]