21335936

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 46348800

約数和(自身を除く): 25012864

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 128, 152, 248, 283, 304, 496, 566, 589, 608, 992, 1132, 1178, 1216, 1984, 2264, 2356, 2432, 3968, 4528, 4712, 5377, 8773, 9056, 9424, 10754, 17546, 18112, 18848, 21508, 35092, 36224, 37696, 43016, 70184, 75392, 86032, 140368, 166687, 172064, 280736, 333374, 344128, 561472, 666748, 688256, 1122944, 1333496, 2666992, 5333984, 10667968, 21335936]

約数ペア:

[(1, 21335936), (2, 10667968), (4, 5333984), (8, 2666992), (16, 1333496), (19, 1122944), (31, 688256), (32, 666748), (38, 561472), (62, 344128), (64, 333374), (76, 280736), (124, 172064), (128, 166687), (152, 140368), (248, 86032), (283, 75392), (304, 70184), (496, 43016), (566, 37696), (589, 36224), (608, 35092), (992, 21508), (1132, 18848), (1178, 18112), (1216, 17546), (1984, 10754), (2264, 9424), (2356, 9056), (2432, 8773), (3968, 5377), (4528, 4712)]